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Finding the Fourth Proportional to 83,272.48, 125,035.44 and 72,736.48

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Solution

The fourth proportional to 83,272.48, 125,035.44 and 72,736.48 is: 109,215.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,272.48 : 125,035.44 = 72,736.48 : x
  2. Step 2: Convert to fraction form
    83,272.48/125,035.44 = 72,736.48/x
  3. Step 3: Cross multiply
    83,272.48x = 125,035.44 × 72,736.48
  4. Step 4: Simplify right side
    83,272.48x = 9,094,637,780.85
  5. Step 5: Solve for x
    x = 9,094,637,780.85/83,272.48
  6. Step 6: Final answer
    x = 109,215.41

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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.