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Finding the Fourth Proportional to 316,879.96, 475,425.82 and 103,657.56

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Solution

The fourth proportional to 316,879.96, 475,425.82 and 103,657.56 is: 155,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,879.96 : 475,425.82 = 103,657.56 : x
  2. Step 2: Convert to fraction form
    316,879.96/475,425.82 = 103,657.56/x
  3. Step 3: Cross multiply
    316,879.96x = 475,425.82 × 103,657.56
  4. Step 4: Simplify right side
    316,879.96x = 49,281,480,462.20
  5. Step 5: Solve for x
    x = 49,281,480,462.20/316,879.96
  6. Step 6: Final answer
    x = 155,520.98

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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.