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Finding the Fourth Proportional to 69,050.80, 103,632.90 and 35,781.04

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Solution

The fourth proportional to 69,050.80, 103,632.90 and 35,781.04 is: 53,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,050.80 : 103,632.90 = 35,781.04 : x
  2. Step 2: Convert to fraction form
    69,050.80/103,632.90 = 35,781.04/x
  3. Step 3: Cross multiply
    69,050.80x = 103,632.90 × 35,781.04
  4. Step 4: Simplify right side
    69,050.80x = 3,708,092,940.22
  5. Step 5: Solve for x
    x = 3,708,092,940.22/69,050.80
  6. Step 6: Final answer
    x = 53,700.94

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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.