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Finding the Fourth Proportional to 66,758.52, 92,125.93 and 36,130.90

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Solution

The fourth proportional to 66,758.52, 92,125.93 and 36,130.90 is: 49,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,758.52 : 92,125.93 = 36,130.90 : x
  2. Step 2: Convert to fraction form
    66,758.52/92,125.93 = 36,130.90/x
  3. Step 3: Cross multiply
    66,758.52x = 92,125.93 × 36,130.90
  4. Step 4: Simplify right side
    66,758.52x = 3,328,592,764.24
  5. Step 5: Solve for x
    x = 3,328,592,764.24/66,758.52
  6. Step 6: Final answer
    x = 49,860.19

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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.