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Finding the Fourth Proportional to 317,345.89, 475,785.55 and 151,250.53

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Solution

The fourth proportional to 317,345.89, 475,785.55 and 151,250.53 is: 226,764.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,345.89 : 475,785.55 = 151,250.53 : x
  2. Step 2: Convert to fraction form
    317,345.89/475,785.55 = 151,250.53/x
  3. Step 3: Cross multiply
    317,345.89x = 475,785.55 × 151,250.53
  4. Step 4: Simplify right side
    317,345.89x = 71,962,816,603.84
  5. Step 5: Solve for x
    x = 71,962,816,603.84/317,345.89
  6. Step 6: Final answer
    x = 226,764.61

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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.