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Finding the Fourth Proportional to 72,052.64, 107,934.04 and 35,920.08

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Solution

The fourth proportional to 72,052.64, 107,934.04 and 35,920.08 is: 53,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,052.64 : 107,934.04 = 35,920.08 : x
  2. Step 2: Convert to fraction form
    72,052.64/107,934.04 = 35,920.08/x
  3. Step 3: Cross multiply
    72,052.64x = 107,934.04 × 35,920.08
  4. Step 4: Simplify right side
    72,052.64x = 3,876,999,351.52
  5. Step 5: Solve for x
    x = 3,876,999,351.52/72,052.64
  6. Step 6: Final answer
    x = 53,807.87

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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.