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Finding the Fourth Proportional to 316,437.75, 474,734.40 and 94,821.75

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Solution

The fourth proportional to 316,437.75, 474,734.40 and 94,821.75 is: 142,255.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,437.75 : 474,734.40 = 94,821.75 : x
  2. Step 2: Convert to fraction form
    316,437.75/474,734.40 = 94,821.75/x
  3. Step 3: Cross multiply
    316,437.75x = 474,734.40 × 94,821.75
  4. Step 4: Simplify right side
    316,437.75x = 45,015,146,593.20
  5. Step 5: Solve for x
    x = 45,015,146,593.20/316,437.75
  6. Step 6: Final answer
    x = 142,255.93

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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.