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Finding the Fourth Proportional to 110,895.43, 152,876.35 and 79,008.97

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Solution

The fourth proportional to 110,895.43, 152,876.35 and 79,008.97 is: 108,918.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,895.43 : 152,876.35 = 79,008.97 : x
  2. Step 2: Convert to fraction form
    110,895.43/152,876.35 = 79,008.97/x
  3. Step 3: Cross multiply
    110,895.43x = 152,876.35 × 79,008.97
  4. Step 4: Simplify right side
    110,895.43x = 12,078,602,950.86
  5. Step 5: Solve for x
    x = 12,078,602,950.86/110,895.43
  6. Step 6: Final answer
    x = 108,918.85

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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.