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Finding the Fourth Proportional to 151,209.90, 226,814.85 and 127,881.90

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Solution

The fourth proportional to 151,209.90, 226,814.85 and 127,881.90 is: 191,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,209.90 : 226,814.85 = 127,881.90 : x
  2. Step 2: Convert to fraction form
    151,209.90/226,814.85 = 127,881.90/x
  3. Step 3: Cross multiply
    151,209.90x = 226,814.85 × 127,881.90
  4. Step 4: Simplify right side
    151,209.90x = 29,005,513,966.22
  5. Step 5: Solve for x
    x = 29,005,513,966.22/151,209.90
  6. Step 6: Final answer
    x = 191,822.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.