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Finding the Fourth Proportional to 132,542.40, 198,878.40 and 62,409.60

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Solution

The fourth proportional to 132,542.40, 198,878.40 and 62,409.60 is: 93,644.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,542.40 : 198,878.40 = 62,409.60 : x
  2. Step 2: Convert to fraction form
    132,542.40/198,878.40 = 62,409.60/x
  3. Step 3: Cross multiply
    132,542.40x = 198,878.40 × 62,409.60
  4. Step 4: Simplify right side
    132,542.40x = 12,411,921,392.64
  5. Step 5: Solve for x
    x = 12,411,921,392.64/132,542.40
  6. Step 6: Final answer
    x = 93,644.91

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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.