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Finding the Fourth Proportional to 316,824.13, 475,342.30 and 103,601.89

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Solution

The fourth proportional to 316,824.13, 475,342.30 and 103,601.89 is: 155,437.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,824.13 : 475,342.30 = 103,601.89 : x
  2. Step 2: Convert to fraction form
    316,824.13/475,342.30 = 103,601.89/x
  3. Step 3: Cross multiply
    316,824.13x = 475,342.30 × 103,601.89
  4. Step 4: Simplify right side
    316,824.13x = 49,246,360,676.95
  5. Step 5: Solve for x
    x = 49,246,360,676.95/316,824.13
  6. Step 6: Final answer
    x = 155,437.53

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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.