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Finding the Fourth Proportional to 132,029.80, 197,871.90 and 53,079.40

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Solution

The fourth proportional to 132,029.80, 197,871.90 and 53,079.40 is: 79,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,029.80 : 197,871.90 = 53,079.40 : x
  2. Step 2: Convert to fraction form
    132,029.80/197,871.90 = 53,079.40/x
  3. Step 3: Cross multiply
    132,029.80x = 197,871.90 × 53,079.40
  4. Step 4: Simplify right side
    132,029.80x = 10,502,921,728.86
  5. Step 5: Solve for x
    x = 10,502,921,728.86/132,029.80
  6. Step 6: Final answer
    x = 79,549.63

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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.