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Finding the Fourth Proportional to 145,664.70, 204,345.30 and 145,664.70

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Solution

The fourth proportional to 145,664.70, 204,345.30 and 145,664.70 is: 204,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,664.70 : 204,345.30 = 145,664.70 : x
  2. Step 2: Convert to fraction form
    145,664.70/204,345.30 = 145,664.70/x
  3. Step 3: Cross multiply
    145,664.70x = 204,345.30 × 145,664.70
  4. Step 4: Simplify right side
    145,664.70x = 29,765,896,820.91
  5. Step 5: Solve for x
    x = 29,765,896,820.91/145,664.70
  6. Step 6: Final answer
    x = 204,345.30

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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.