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Finding the Fourth Proportional to 145,164.73, 217,747.01 and 45,333.48

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Solution

The fourth proportional to 145,164.73, 217,747.01 and 45,333.48 is: 68,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,164.73 : 217,747.01 = 45,333.48 : x
  2. Step 2: Convert to fraction form
    145,164.73/217,747.01 = 45,333.48/x
  3. Step 3: Cross multiply
    145,164.73x = 217,747.01 × 45,333.48
  4. Step 4: Simplify right side
    145,164.73x = 9,871,228,679.68
  5. Step 5: Solve for x
    x = 9,871,228,679.68/145,164.73
  6. Step 6: Final answer
    x = 68,000.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.