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Finding the Fourth Proportional to 147,560.40, 221,311.80 and 49,064.40

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Solution

The fourth proportional to 147,560.40, 221,311.80 and 49,064.40 is: 73,587.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,560.40 : 221,311.80 = 49,064.40 : x
  2. Step 2: Convert to fraction form
    147,560.40/221,311.80 = 49,064.40/x
  3. Step 3: Cross multiply
    147,560.40x = 221,311.80 × 49,064.40
  4. Step 4: Simplify right side
    147,560.40x = 10,858,530,679.92
  5. Step 5: Solve for x
    x = 10,858,530,679.92/147,560.40
  6. Step 6: Final answer
    x = 73,587.02

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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.