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Finding the Fourth Proportional to 99,127.10, 136,797.86 and 53,806.97

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Solution

The fourth proportional to 99,127.10, 136,797.86 and 53,806.97 is: 74,254.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,127.10 : 136,797.86 = 53,806.97 : x
  2. Step 2: Convert to fraction form
    99,127.10/136,797.86 = 53,806.97/x
  3. Step 3: Cross multiply
    99,127.10x = 136,797.86 × 53,806.97
  4. Step 4: Simplify right side
    99,127.10x = 7,360,678,349.08
  5. Step 5: Solve for x
    x = 7,360,678,349.08/99,127.10
  6. Step 6: Final answer
    x = 74,254.95

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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.