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Finding the Fourth Proportional to 316,841.66, 475,291.70 and 103,610.68

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Solution

The fourth proportional to 316,841.66, 475,291.70 and 103,610.68 is: 155,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,841.66 : 475,291.70 = 103,610.68 : x
  2. Step 2: Convert to fraction form
    316,841.66/475,291.70 = 103,610.68/x
  3. Step 3: Cross multiply
    316,841.66x = 475,291.70 × 103,610.68
  4. Step 4: Simplify right side
    316,841.66x = 49,245,294,917.61
  5. Step 5: Solve for x
    x = 49,245,294,917.61/316,841.66
  6. Step 6: Final answer
    x = 155,425.57

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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.