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Finding the Fourth Proportional to 88,787.30, 133,035.15 and 73,915.70

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Solution

The fourth proportional to 88,787.30, 133,035.15 and 73,915.70 is: 110,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,787.30 : 133,035.15 = 73,915.70 : x
  2. Step 2: Convert to fraction form
    88,787.30/133,035.15 = 73,915.70/x
  3. Step 3: Cross multiply
    88,787.30x = 133,035.15 × 73,915.70
  4. Step 4: Simplify right side
    88,787.30x = 9,833,386,236.86
  5. Step 5: Solve for x
    x = 9,833,386,236.86/88,787.30
  6. Step 6: Final answer
    x = 110,752.17

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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.