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Finding the Fourth Proportional to 143,871.45, 215,799.39 and 44,031.66

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Solution

The fourth proportional to 143,871.45, 215,799.39 and 44,031.66 is: 66,045.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,871.45 : 215,799.39 = 44,031.66 : x
  2. Step 2: Convert to fraction form
    143,871.45/215,799.39 = 44,031.66/x
  3. Step 3: Cross multiply
    143,871.45x = 215,799.39 × 44,031.66
  4. Step 4: Simplify right side
    143,871.45x = 9,502,005,368.69
  5. Step 5: Solve for x
    x = 9,502,005,368.69/143,871.45
  6. Step 6: Final answer
    x = 66,045.11

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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.