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Finding the Fourth Proportional to 92,073.88, 138,083.55 and 39,470.86

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Solution

The fourth proportional to 92,073.88, 138,083.55 and 39,470.86 is: 59,194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,073.88 : 138,083.55 = 39,470.86 : x
  2. Step 2: Convert to fraction form
    92,073.88/138,083.55 = 39,470.86/x
  3. Step 3: Cross multiply
    92,073.88x = 138,083.55 × 39,470.86
  4. Step 4: Simplify right side
    92,073.88x = 5,450,276,470.35
  5. Step 5: Solve for x
    x = 5,450,276,470.35/92,073.88
  6. Step 6: Final answer
    x = 59,194.60

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1.5x scale

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.