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Finding the Fourth Proportional to 118,304.16, 163,260.11 and 75,862.86

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Solution

The fourth proportional to 118,304.16, 163,260.11 and 75,862.86 is: 104,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.16 : 163,260.11 = 75,862.86 : x
  2. Step 2: Convert to fraction form
    118,304.16/163,260.11 = 75,862.86/x
  3. Step 3: Cross multiply
    118,304.16x = 163,260.11 × 75,862.86
  4. Step 4: Simplify right side
    118,304.16x = 12,385,377,672.90
  5. Step 5: Solve for x
    x = 12,385,377,672.90/118,304.16
  6. Step 6: Final answer
    x = 104,690.98

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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.