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Finding the Fourth Proportional to 96,279.17, 144,489.74 and 45,678.41

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Solution

The fourth proportional to 96,279.17, 144,489.74 and 45,678.41 is: 68,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,279.17 : 144,489.74 = 45,678.41 : x
  2. Step 2: Convert to fraction form
    96,279.17/144,489.74 = 45,678.41/x
  3. Step 3: Cross multiply
    96,279.17x = 144,489.74 × 45,678.41
  4. Step 4: Simplify right side
    96,279.17x = 6,600,060,633.67
  5. Step 5: Solve for x
    x = 6,600,060,633.67/96,279.17
  6. Step 6: Final answer
    x = 68,551.28

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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.