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Finding the Fourth Proportional to 94,456, 130,337.92 and 54,167.68

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Solution

The fourth proportional to 94,456, 130,337.92 and 54,167.68 is: 74,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,456 : 130,337.92 = 54,167.68 : x
  2. Step 2: Convert to fraction form
    94,456/130,337.92 = 54,167.68/x
  3. Step 3: Cross multiply
    94,456x = 130,337.92 × 54,167.68
  4. Step 4: Simplify right side
    94,456x = 7,060,102,742.43
  5. Step 5: Solve for x
    x = 7,060,102,742.43/94,456
  6. Step 6: Final answer
    x = 74,744.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.