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Finding the Fourth Proportional to 91,680.52, 137,491.98 and 35,516.74

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Solution

The fourth proportional to 91,680.52, 137,491.98 and 35,516.74 is: 53,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,680.52 : 137,491.98 = 35,516.74 : x
  2. Step 2: Convert to fraction form
    91,680.52/137,491.98 = 35,516.74/x
  3. Step 3: Cross multiply
    91,680.52x = 137,491.98 × 35,516.74
  4. Step 4: Simplify right side
    91,680.52x = 4,883,266,905.75
  5. Step 5: Solve for x
    x = 4,883,266,905.75/91,680.52
  6. Step 6: Final answer
    x = 53,263.95

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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.