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Finding the Fourth Proportional to 92,169.88, 127,126.53 and 69,509.83

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Solution

The fourth proportional to 92,169.88, 127,126.53 and 69,509.83 is: 95,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,169.88 : 127,126.53 = 69,509.83 : x
  2. Step 2: Convert to fraction form
    92,169.88/127,126.53 = 69,509.83/x
  3. Step 3: Cross multiply
    92,169.88x = 127,126.53 × 69,509.83
  4. Step 4: Simplify right side
    92,169.88x = 8,836,542,671.95
  5. Step 5: Solve for x
    x = 8,836,542,671.95/92,169.88
  6. Step 6: Final answer
    x = 95,872.35

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1.5x scale

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.