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Finding the Fourth Proportional to 80,609.80, 111,239.10 and 46,153.38

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Solution

The fourth proportional to 80,609.80, 111,239.10 and 46,153.38 is: 63,690.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,609.80 : 111,239.10 = 46,153.38 : x
  2. Step 2: Convert to fraction form
    80,609.80/111,239.10 = 46,153.38/x
  3. Step 3: Cross multiply
    80,609.80x = 111,239.10 × 46,153.38
  4. Step 4: Simplify right side
    80,609.80x = 5,134,060,453.16
  5. Step 5: Solve for x
    x = 5,134,060,453.16/80,609.80
  6. Step 6: Final answer
    x = 63,690.28

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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.