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Finding the Fourth Proportional to 157,630.92, 217,526.40 and 86,010.96

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Solution

The fourth proportional to 157,630.92, 217,526.40 and 86,010.96 is: 118,692.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,630.92 : 217,526.40 = 86,010.96 : x
  2. Step 2: Convert to fraction form
    157,630.92/217,526.40 = 86,010.96/x
  3. Step 3: Cross multiply
    157,630.92x = 217,526.40 × 86,010.96
  4. Step 4: Simplify right side
    157,630.92x = 18,709,654,489.34
  5. Step 5: Solve for x
    x = 18,709,654,489.34/157,630.92
  6. Step 6: Final answer
    x = 118,692.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.