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Finding the Fourth Proportional to 43,722.20, 65,060.02 and 43,574.72

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Solution

The fourth proportional to 43,722.20, 65,060.02 and 43,574.72 is: 64,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,722.20 : 65,060.02 = 43,574.72 : x
  2. Step 2: Convert to fraction form
    43,722.20/65,060.02 = 43,574.72/x
  3. Step 3: Cross multiply
    43,722.20x = 65,060.02 × 43,574.72
  4. Step 4: Simplify right side
    43,722.20x = 2,834,972,154.69
  5. Step 5: Solve for x
    x = 2,834,972,154.69/43,722.20
  6. Step 6: Final answer
    x = 64,840.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.