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Finding the Fourth Proportional to 65,903.20, 98,854.80 and 62,274.40

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Solution

The fourth proportional to 65,903.20, 98,854.80 and 62,274.40 is: 93,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,903.20 : 98,854.80 = 62,274.40 : x
  2. Step 2: Convert to fraction form
    65,903.20/98,854.80 = 62,274.40/x
  3. Step 3: Cross multiply
    65,903.20x = 98,854.80 × 62,274.40
  4. Step 4: Simplify right side
    65,903.20x = 6,156,123,357.12
  5. Step 5: Solve for x
    x = 6,156,123,357.12/65,903.20
  6. Step 6: Final answer
    x = 93,411.60

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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.