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Finding the Fourth Proportional to 104,803.42, 144,605.10 and 87,876.04

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Solution

The fourth proportional to 104,803.42, 144,605.10 and 87,876.04 is: 121,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,803.42 : 144,605.10 = 87,876.04 : x
  2. Step 2: Convert to fraction form
    104,803.42/144,605.10 = 87,876.04/x
  3. Step 3: Cross multiply
    104,803.42x = 144,605.10 × 87,876.04
  4. Step 4: Simplify right side
    104,803.42x = 12,707,323,551.80
  5. Step 5: Solve for x
    x = 12,707,323,551.80/104,803.42
  6. Step 6: Final answer
    x = 121,249.13

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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.