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Finding the Fourth Proportional to 119,598.40, 165,046.92 and 65,885.32

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Solution

The fourth proportional to 119,598.40, 165,046.92 and 65,885.32 is: 90,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,598.40 : 165,046.92 = 65,885.32 : x
  2. Step 2: Convert to fraction form
    119,598.40/165,046.92 = 65,885.32/x
  3. Step 3: Cross multiply
    119,598.40x = 165,046.92 × 65,885.32
  4. Step 4: Simplify right side
    119,598.40x = 10,874,169,139.21
  5. Step 5: Solve for x
    x = 10,874,169,139.21/119,598.40
  6. Step 6: Final answer
    x = 90,922.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.