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Finding the Fourth Proportional to 99,251.67, 136,967.85 and 53,930.01

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Solution

The fourth proportional to 99,251.67, 136,967.85 and 53,930.01 is: 74,423.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,251.67 : 136,967.85 = 53,930.01 : x
  2. Step 2: Convert to fraction form
    99,251.67/136,967.85 = 53,930.01/x
  3. Step 3: Cross multiply
    99,251.67x = 136,967.85 × 53,930.01
  4. Step 4: Simplify right side
    99,251.67x = 7,386,677,520.18
  5. Step 5: Solve for x
    x = 7,386,677,520.18/99,251.67
  6. Step 6: Final answer
    x = 74,423.71

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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.