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Finding the Fourth Proportional to 113,290.64, 169,926.13 and 53,304.87

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Solution

The fourth proportional to 113,290.64, 169,926.13 and 53,304.87 is: 79,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,290.64 : 169,926.13 = 53,304.87 : x
  2. Step 2: Convert to fraction form
    113,290.64/169,926.13 = 53,304.87/x
  3. Step 3: Cross multiply
    113,290.64x = 169,926.13 × 53,304.87
  4. Step 4: Simplify right side
    113,290.64x = 9,057,890,269.25
  5. Step 5: Solve for x
    x = 9,057,890,269.25/113,290.64
  6. Step 6: Final answer
    x = 79,952.68

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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.