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Finding the Fourth Proportional to 316,750.69, 437,117.21 and 173,511.73

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Solution

The fourth proportional to 316,750.69, 437,117.21 and 173,511.73 is: 239,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,750.69 : 437,117.21 = 173,511.73 : x
  2. Step 2: Convert to fraction form
    316,750.69/437,117.21 = 173,511.73/x
  3. Step 3: Cross multiply
    316,750.69x = 437,117.21 × 173,511.73
  4. Step 4: Simplify right side
    316,750.69x = 75,844,963,319.87
  5. Step 5: Solve for x
    x = 75,844,963,319.87/316,750.69
  6. Step 6: Final answer
    x = 239,446.88

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1.5x scale

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.