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Finding the Fourth Proportional to 63,134.88, 87,048.72 and 51,154.08

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Solution

The fourth proportional to 63,134.88, 87,048.72 and 51,154.08 is: 70,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,134.88 : 87,048.72 = 51,154.08 : x
  2. Step 2: Convert to fraction form
    63,134.88/87,048.72 = 51,154.08/x
  3. Step 3: Cross multiply
    63,134.88x = 87,048.72 × 51,154.08
  4. Step 4: Simplify right side
    63,134.88x = 4,452,897,186.78
  5. Step 5: Solve for x
    x = 4,452,897,186.78/63,134.88
  6. Step 6: Final answer
    x = 70,529.91

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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.