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Finding the Fourth Proportional to 250,332.76, 345,462.78 and 149,711.32

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Solution

The fourth proportional to 250,332.76, 345,462.78 and 149,711.32 is: 206,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,332.76 : 345,462.78 = 149,711.32 : x
  2. Step 2: Convert to fraction form
    250,332.76/345,462.78 = 149,711.32/x
  3. Step 3: Cross multiply
    250,332.76x = 345,462.78 × 149,711.32
  4. Step 4: Simplify right side
    250,332.76x = 51,719,688,804.67
  5. Step 5: Solve for x
    x = 51,719,688,804.67/250,332.76
  6. Step 6: Final answer
    x = 206,603.76

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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.