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Finding the Fourth Proportional to 71,050.40, 98,049.12 and 42,750.08

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Solution

The fourth proportional to 71,050.40, 98,049.12 and 42,750.08 is: 58,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,050.40 : 98,049.12 = 42,750.08 : x
  2. Step 2: Convert to fraction form
    71,050.40/98,049.12 = 42,750.08/x
  3. Step 3: Cross multiply
    71,050.40x = 98,049.12 × 42,750.08
  4. Step 4: Simplify right side
    71,050.40x = 4,191,607,723.93
  5. Step 5: Solve for x
    x = 4,191,607,723.93/71,050.40
  6. Step 6: Final answer
    x = 58,994.85

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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.