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Finding the Fourth Proportional to 88,689.76, 133,035.36 and 62,512

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Solution

The fourth proportional to 88,689.76, 133,035.36 and 62,512 is: 93,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,689.76 : 133,035.36 = 62,512 : x
  2. Step 2: Convert to fraction form
    88,689.76/133,035.36 = 62,512/x
  3. Step 3: Cross multiply
    88,689.76x = 133,035.36 × 62,512
  4. Step 4: Simplify right side
    88,689.76x = 8,316,306,424.32
  5. Step 5: Solve for x
    x = 8,316,306,424.32/88,689.76
  6. Step 6: Final answer
    x = 93,768.51

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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.