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Finding the Fourth Proportional to 316,937.08, 475,507.23 and 92,311.01

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Solution

The fourth proportional to 316,937.08, 475,507.23 and 92,311.01 is: 138,496.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,937.08 : 475,507.23 = 92,311.01 : x
  2. Step 2: Convert to fraction form
    316,937.08/475,507.23 = 92,311.01/x
  3. Step 3: Cross multiply
    316,937.08x = 475,507.23 × 92,311.01
  4. Step 4: Simplify right side
    316,937.08x = 43,894,551,723.05
  5. Step 5: Solve for x
    x = 43,894,551,723.05/316,937.08
  6. Step 6: Final answer
    x = 138,496.11

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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.