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Finding the Fourth Proportional to 88,664.90, 133,062.15 and 62,420.90

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Solution

The fourth proportional to 88,664.90, 133,062.15 and 62,420.90 is: 93,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,664.90 : 133,062.15 = 62,420.90 : x
  2. Step 2: Convert to fraction form
    88,664.90/133,062.15 = 62,420.90/x
  3. Step 3: Cross multiply
    88,664.90x = 133,062.15 × 62,420.90
  4. Step 4: Simplify right side
    88,664.90x = 8,305,859,158.94
  5. Step 5: Solve for x
    x = 8,305,859,158.94/88,664.90
  6. Step 6: Final answer
    x = 93,676.97

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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.