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Finding the Fourth Proportional to 92,281.32, 127,348.18 and 49,839.86

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Solution

The fourth proportional to 92,281.32, 127,348.18 and 49,839.86 is: 68,778.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,281.32 : 127,348.18 = 49,839.86 : x
  2. Step 2: Convert to fraction form
    92,281.32/127,348.18 = 49,839.86/x
  3. Step 3: Cross multiply
    92,281.32x = 127,348.18 × 49,839.86
  4. Step 4: Simplify right side
    92,281.32x = 6,347,015,462.45
  5. Step 5: Solve for x
    x = 6,347,015,462.45/92,281.32
  6. Step 6: Final answer
    x = 68,778.98

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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.