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Finding the Fourth Proportional to 316,570.32, 474,861.56 and 116,787.87

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Solution

The fourth proportional to 316,570.32, 474,861.56 and 116,787.87 is: 175,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,570.32 : 474,861.56 = 116,787.87 : x
  2. Step 2: Convert to fraction form
    316,570.32/474,861.56 = 116,787.87/x
  3. Step 3: Cross multiply
    316,570.32x = 474,861.56 × 116,787.87
  4. Step 4: Simplify right side
    316,570.32x = 55,458,069,553.34
  5. Step 5: Solve for x
    x = 55,458,069,553.34/316,570.32
  6. Step 6: Final answer
    x = 175,184.05

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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.