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Finding the Fourth Proportional to 98,874, 136,445.42 and 53,550.95

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Solution

The fourth proportional to 98,874, 136,445.42 and 53,550.95 is: 73,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,874 : 136,445.42 = 53,550.95 : x
  2. Step 2: Convert to fraction form
    98,874/136,445.42 = 53,550.95/x
  3. Step 3: Cross multiply
    98,874x = 136,445.42 × 53,550.95
  4. Step 4: Simplify right side
    98,874x = 7,306,780,914.17
  5. Step 5: Solve for x
    x = 7,306,780,914.17/98,874
  6. Step 6: Final answer
    x = 73,899.92

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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.