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Finding the Fourth Proportional to 88,577.70, 132,866.55 and 76,913.70

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Solution

The fourth proportional to 88,577.70, 132,866.55 and 76,913.70 is: 115,370.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,577.70 : 132,866.55 = 76,913.70 : x
  2. Step 2: Convert to fraction form
    88,577.70/132,866.55 = 76,913.70/x
  3. Step 3: Cross multiply
    88,577.70x = 132,866.55 × 76,913.70
  4. Step 4: Simplify right side
    88,577.70x = 10,219,257,966.74
  5. Step 5: Solve for x
    x = 10,219,257,966.74/88,577.70
  6. Step 6: Final answer
    x = 115,370.55

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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.