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Finding the Fourth Proportional to 93,888.52, 129,566.14 and 56,171.64

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Solution

The fourth proportional to 93,888.52, 129,566.14 and 56,171.64 is: 77,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,888.52 : 129,566.14 = 56,171.64 : x
  2. Step 2: Convert to fraction form
    93,888.52/129,566.14 = 56,171.64/x
  3. Step 3: Cross multiply
    93,888.52x = 129,566.14 × 56,171.64
  4. Step 4: Simplify right side
    93,888.52x = 7,277,942,572.27
  5. Step 5: Solve for x
    x = 7,277,942,572.27/93,888.52
  6. Step 6: Final answer
    x = 77,516.85

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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.