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Finding the Fourth Proportional to 83,232.80, 124,849.20 and 59,904.80

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Solution

The fourth proportional to 83,232.80, 124,849.20 and 59,904.80 is: 89,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,232.80 : 124,849.20 = 59,904.80 : x
  2. Step 2: Convert to fraction form
    83,232.80/124,849.20 = 59,904.80/x
  3. Step 3: Cross multiply
    83,232.80x = 124,849.20 × 59,904.80
  4. Step 4: Simplify right side
    83,232.80x = 7,479,066,356.16
  5. Step 5: Solve for x
    x = 7,479,066,356.16/83,232.80
  6. Step 6: Final answer
    x = 89,857.20

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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.