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Finding the Fourth Proportional to 157,614, 217,477.56 and 93,957.72

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Solution

The fourth proportional to 157,614, 217,477.56 and 93,957.72 is: 129,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,614 : 217,477.56 = 93,957.72 : x
  2. Step 2: Convert to fraction form
    157,614/217,477.56 = 93,957.72/x
  3. Step 3: Cross multiply
    157,614x = 217,477.56 × 93,957.72
  4. Step 4: Simplify right side
    157,614x = 20,433,695,688.76
  5. Step 5: Solve for x
    x = 20,433,695,688.76/157,614
  6. Step 6: Final answer
    x = 129,643.91

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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.