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Finding the Fourth Proportional to 88,710.80, 132,918.57 and 38,715.98

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Solution

The fourth proportional to 88,710.80, 132,918.57 and 38,715.98 is: 58,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,710.80 : 132,918.57 = 38,715.98 : x
  2. Step 2: Convert to fraction form
    88,710.80/132,918.57 = 38,715.98/x
  3. Step 3: Cross multiply
    88,710.80x = 132,918.57 × 38,715.98
  4. Step 4: Simplify right side
    88,710.80x = 5,146,072,033.16
  5. Step 5: Solve for x
    x = 5,146,072,033.16/88,710.80
  6. Step 6: Final answer
    x = 58,009.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.