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Finding the Fourth Proportional to 89,398.70, 134,215.25 and 59,948.32

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Solution

The fourth proportional to 89,398.70, 134,215.25 and 59,948.32 is: 90,001.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,398.70 : 134,215.25 = 59,948.32 : x
  2. Step 2: Convert to fraction form
    89,398.70/134,215.25 = 59,948.32/x
  3. Step 3: Cross multiply
    89,398.70x = 134,215.25 × 59,948.32
  4. Step 4: Simplify right side
    89,398.70x = 8,045,977,785.06
  5. Step 5: Solve for x
    x = 8,045,977,785.06/89,398.70
  6. Step 6: Final answer
    x = 90,001.06

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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.