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Finding the Fourth Proportional to 99,082.80, 148,643.40 and 49,834.80

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Solution

The fourth proportional to 99,082.80, 148,643.40 and 49,834.80 is: 74,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,082.80 : 148,643.40 = 49,834.80 : x
  2. Step 2: Convert to fraction form
    99,082.80/148,643.40 = 49,834.80/x
  3. Step 3: Cross multiply
    99,082.80x = 148,643.40 × 49,834.80
  4. Step 4: Simplify right side
    99,082.80x = 7,407,614,110.32
  5. Step 5: Solve for x
    x = 7,407,614,110.32/99,082.80
  6. Step 6: Final answer
    x = 74,761.86

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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.