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Finding the Fourth Proportional to 243,494.68, 336,016.19 and 136,065.59

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Solution

The fourth proportional to 243,494.68, 336,016.19 and 136,065.59 is: 187,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,494.68 : 336,016.19 = 136,065.59 : x
  2. Step 2: Convert to fraction form
    243,494.68/336,016.19 = 136,065.59/x
  3. Step 3: Cross multiply
    243,494.68x = 336,016.19 × 136,065.59
  4. Step 4: Simplify right side
    243,494.68x = 45,720,241,141.90
  5. Step 5: Solve for x
    x = 45,720,241,141.90/243,494.68
  6. Step 6: Final answer
    x = 187,766.90

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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.