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Finding the Fourth Proportional to 89,708.44, 134,569.16 and 36,374.80

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Solution

The fourth proportional to 89,708.44, 134,569.16 and 36,374.80 is: 54,564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,708.44 : 134,569.16 = 36,374.80 : x
  2. Step 2: Convert to fraction form
    89,708.44/134,569.16 = 36,374.80/x
  3. Step 3: Cross multiply
    89,708.44x = 134,569.16 × 36,374.80
  4. Step 4: Simplify right side
    89,708.44x = 4,894,926,281.17
  5. Step 5: Solve for x
    x = 4,894,926,281.17/89,708.44
  6. Step 6: Final answer
    x = 54,564.84

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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.