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Finding the Fourth Proportional to 92,017.75, 138,026.71 and 28,842.81

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Solution

The fourth proportional to 92,017.75, 138,026.71 and 28,842.81 is: 43,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,017.75 : 138,026.71 = 28,842.81 : x
  2. Step 2: Convert to fraction form
    92,017.75/138,026.71 = 28,842.81/x
  3. Step 3: Cross multiply
    92,017.75x = 138,026.71 × 28,842.81
  4. Step 4: Simplify right side
    92,017.75x = 3,981,078,444.41
  5. Step 5: Solve for x
    x = 3,981,078,444.41/92,017.75
  6. Step 6: Final answer
    x = 43,264.24

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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.