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Finding the Fourth Proportional to 240,854.59, 361,332.60 and 91,091.53

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Solution

The fourth proportional to 240,854.59, 361,332.60 and 91,091.53 is: 136,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,854.59 : 361,332.60 = 91,091.53 : x
  2. Step 2: Convert to fraction form
    240,854.59/361,332.60 = 91,091.53/x
  3. Step 3: Cross multiply
    240,854.59x = 361,332.60 × 91,091.53
  4. Step 4: Simplify right side
    240,854.59x = 32,914,339,372.88
  5. Step 5: Solve for x
    x = 32,914,339,372.88/240,854.59
  6. Step 6: Final answer
    x = 136,656.48

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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.