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Finding the Fourth Proportional to 71,808.03, 107,551.65 and 52,041.20

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Solution

The fourth proportional to 71,808.03, 107,551.65 and 52,041.20 is: 77,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,808.03 : 107,551.65 = 52,041.20 : x
  2. Step 2: Convert to fraction form
    71,808.03/107,551.65 = 52,041.20/x
  3. Step 3: Cross multiply
    71,808.03x = 107,551.65 × 52,041.20
  4. Step 4: Simplify right side
    71,808.03x = 5,597,116,390.22
  5. Step 5: Solve for x
    x = 5,597,116,390.22/71,808.03
  6. Step 6: Final answer
    x = 77,945.55

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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.