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Finding the Fourth Proportional to 92,134.30, 138,211.32 and 25,574.71

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Solution

The fourth proportional to 92,134.30, 138,211.32 and 25,574.71 is: 38,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,134.30 : 138,211.32 = 25,574.71 : x
  2. Step 2: Convert to fraction form
    92,134.30/138,211.32 = 25,574.71/x
  3. Step 3: Cross multiply
    92,134.30x = 138,211.32 × 25,574.71
  4. Step 4: Simplify right side
    92,134.30x = 3,534,713,736.66
  5. Step 5: Solve for x
    x = 3,534,713,736.66/92,134.30
  6. Step 6: Final answer
    x = 38,364.80

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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.