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Finding the Fourth Proportional to 92,685.16, 127,860.42 and 54,932.68

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Solution

The fourth proportional to 92,685.16, 127,860.42 and 54,932.68 is: 75,780.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,685.16 : 127,860.42 = 54,932.68 : x
  2. Step 2: Convert to fraction form
    92,685.16/127,860.42 = 54,932.68/x
  3. Step 3: Cross multiply
    92,685.16x = 127,860.42 × 54,932.68
  4. Step 4: Simplify right side
    92,685.16x = 7,023,715,536.53
  5. Step 5: Solve for x
    x = 7,023,715,536.53/92,685.16
  6. Step 6: Final answer
    x = 75,780.37

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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.