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Finding the Fourth Proportional to 99,197.70, 136,892.79 and 53,875.62

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Solution

The fourth proportional to 99,197.70, 136,892.79 and 53,875.62 is: 74,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,197.70 : 136,892.79 = 53,875.62 : x
  2. Step 2: Convert to fraction form
    99,197.70/136,892.79 = 53,875.62/x
  3. Step 3: Cross multiply
    99,197.70x = 136,892.79 × 53,875.62
  4. Step 4: Simplify right side
    99,197.70x = 7,375,183,934.78
  5. Step 5: Solve for x
    x = 7,375,183,934.78/99,197.70
  6. Step 6: Final answer
    x = 74,348.34

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1.5x scale

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.