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Finding the Fourth Proportional to 67,854.60, 93,639.91 and 37,641.90

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Solution

The fourth proportional to 67,854.60, 93,639.91 and 37,641.90 is: 51,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,854.60 : 93,639.91 = 37,641.90 : x
  2. Step 2: Convert to fraction form
    67,854.60/93,639.91 = 37,641.90/x
  3. Step 3: Cross multiply
    67,854.60x = 93,639.91 × 37,641.90
  4. Step 4: Simplify right side
    67,854.60x = 3,524,784,128.23
  5. Step 5: Solve for x
    x = 3,524,784,128.23/67,854.60
  6. Step 6: Final answer
    x = 51,946.13

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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.