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Finding the Fourth Proportional to 160,195.72, 240,330.09 and 85,276.39

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Solution

The fourth proportional to 160,195.72, 240,330.09 and 85,276.39 is: 127,934.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,195.72 : 240,330.09 = 85,276.39 : x
  2. Step 2: Convert to fraction form
    160,195.72/240,330.09 = 85,276.39/x
  3. Step 3: Cross multiply
    160,195.72x = 240,330.09 × 85,276.39
  4. Step 4: Simplify right side
    160,195.72x = 20,494,482,483.58
  5. Step 5: Solve for x
    x = 20,494,482,483.58/160,195.72
  6. Step 6: Final answer
    x = 127,934.02

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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.