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Finding the Fourth Proportional to 157,765.91, 217,745.01 and 93,232.40

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Solution

The fourth proportional to 157,765.91, 217,745.01 and 93,232.40 is: 128,677.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,765.91 : 217,745.01 = 93,232.40 : x
  2. Step 2: Convert to fraction form
    157,765.91/217,745.01 = 93,232.40/x
  3. Step 3: Cross multiply
    157,765.91x = 217,745.01 × 93,232.40
  4. Step 4: Simplify right side
    157,765.91x = 20,300,888,781.60
  5. Step 5: Solve for x
    x = 20,300,888,781.60/157,765.91
  6. Step 6: Final answer
    x = 128,677.29

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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.