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Finding the Fourth Proportional to 145,331.40, 202,997.40 and 145,331.40

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Solution

The fourth proportional to 145,331.40, 202,997.40 and 145,331.40 is: 202,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,331.40 : 202,997.40 = 145,331.40 : x
  2. Step 2: Convert to fraction form
    145,331.40/202,997.40 = 145,331.40/x
  3. Step 3: Cross multiply
    145,331.40x = 202,997.40 × 145,331.40
  4. Step 4: Simplify right side
    145,331.40x = 29,501,896,338.36
  5. Step 5: Solve for x
    x = 29,501,896,338.36/145,331.40
  6. Step 6: Final answer
    x = 202,997.40

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.