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Finding the Fourth Proportional to 132,615.40, 198,987.90 and 62,482.60

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Solution

The fourth proportional to 132,615.40, 198,987.90 and 62,482.60 is: 93,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,615.40 : 198,987.90 = 62,482.60 : x
  2. Step 2: Convert to fraction form
    132,615.40/198,987.90 = 62,482.60/x
  3. Step 3: Cross multiply
    132,615.40x = 198,987.90 × 62,482.60
  4. Step 4: Simplify right side
    132,615.40x = 12,433,281,360.54
  5. Step 5: Solve for x
    x = 12,433,281,360.54/132,615.40
  6. Step 6: Final answer
    x = 93,754.43

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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.