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Finding the Fourth Proportional to 75,068.80, 112,534.08 and 35,644.48

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Solution

The fourth proportional to 75,068.80, 112,534.08 and 35,644.48 is: 53,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,068.80 : 112,534.08 = 35,644.48 : x
  2. Step 2: Convert to fraction form
    75,068.80/112,534.08 = 35,644.48/x
  3. Step 3: Cross multiply
    75,068.80x = 112,534.08 × 35,644.48
  4. Step 4: Simplify right side
    75,068.80x = 4,011,218,763.88
  5. Step 5: Solve for x
    x = 4,011,218,763.88/75,068.80
  6. Step 6: Final answer
    x = 53,433.90

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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.