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Finding the Fourth Proportional to 157,644.48, 217,534.56 and 93,969.60

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Solution

The fourth proportional to 157,644.48, 217,534.56 and 93,969.60 is: 129,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,644.48 : 217,534.56 = 93,969.60 : x
  2. Step 2: Convert to fraction form
    157,644.48/217,534.56 = 93,969.60/x
  3. Step 3: Cross multiply
    157,644.48x = 217,534.56 × 93,969.60
  4. Step 4: Simplify right side
    157,644.48x = 20,441,635,589.38
  5. Step 5: Solve for x
    x = 20,441,635,589.38/157,644.48
  6. Step 6: Final answer
    x = 129,669.21

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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.