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Finding the Fourth Proportional to 80,869.75, 111,598.76 and 45,058.99

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Solution

The fourth proportional to 80,869.75, 111,598.76 and 45,058.99 is: 62,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,869.75 : 111,598.76 = 45,058.99 : x
  2. Step 2: Convert to fraction form
    80,869.75/111,598.76 = 45,058.99/x
  3. Step 3: Cross multiply
    80,869.75x = 111,598.76 × 45,058.99
  4. Step 4: Simplify right side
    80,869.75x = 5,028,526,852.86
  5. Step 5: Solve for x
    x = 5,028,526,852.86/80,869.75
  6. Step 6: Final answer
    x = 62,180.57

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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.