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Finding the Fourth Proportional to 243,591.00, 336,149.65 and 136,173.66

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Solution

The fourth proportional to 243,591.00, 336,149.65 and 136,173.66 is: 187,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,591.00 : 336,149.65 = 136,173.66 : x
  2. Step 2: Convert to fraction form
    243,591.00/336,149.65 = 136,173.66/x
  3. Step 3: Cross multiply
    243,591.00x = 336,149.65 × 136,173.66
  4. Step 4: Simplify right side
    243,591.00x = 45,774,726,291.90
  5. Step 5: Solve for x
    x = 45,774,726,291.90/243,591.00
  6. Step 6: Final answer
    x = 187,916.33

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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.