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Finding the Fourth Proportional to 235,661.47, 353,446.57 and 91,567.04

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Solution

The fourth proportional to 235,661.47, 353,446.57 and 91,567.04 is: 137,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,661.47 : 353,446.57 = 91,567.04 : x
  2. Step 2: Convert to fraction form
    235,661.47/353,446.57 = 91,567.04/x
  3. Step 3: Cross multiply
    235,661.47x = 353,446.57 × 91,567.04
  4. Step 4: Simplify right side
    235,661.47x = 32,364,053,987.98
  5. Step 5: Solve for x
    x = 32,364,053,987.98/235,661.47
  6. Step 6: Final answer
    x = 137,332.82

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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.