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Finding the Fourth Proportional to 79,758.93, 119,774.88 and 53,275.13

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Solution

The fourth proportional to 79,758.93, 119,774.88 and 53,275.13 is: 80,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,758.93 : 119,774.88 = 53,275.13 : x
  2. Step 2: Convert to fraction form
    79,758.93/119,774.88 = 53,275.13/x
  3. Step 3: Cross multiply
    79,758.93x = 119,774.88 × 53,275.13
  4. Step 4: Simplify right side
    79,758.93x = 6,381,021,703.86
  5. Step 5: Solve for x
    x = 6,381,021,703.86/79,758.93
  6. Step 6: Final answer
    x = 80,003.85

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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.