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Finding the Fourth Proportional to 316,231.47, 474,380.51 and 103,016.07

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Solution

The fourth proportional to 316,231.47, 474,380.51 and 103,016.07 is: 154,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,231.47 : 474,380.51 = 103,016.07 : x
  2. Step 2: Convert to fraction form
    316,231.47/474,380.51 = 103,016.07/x
  3. Step 3: Cross multiply
    316,231.47x = 474,380.51 × 103,016.07
  4. Step 4: Simplify right side
    316,231.47x = 48,868,815,309.72
  5. Step 5: Solve for x
    x = 48,868,815,309.72/316,231.47
  6. Step 6: Final answer
    x = 154,534.95

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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.