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Finding the Fourth Proportional to 73,658.88, 101,649.28 and 40,124.88

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Solution

The fourth proportional to 73,658.88, 101,649.28 and 40,124.88 is: 55,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,658.88 : 101,649.28 = 40,124.88 : x
  2. Step 2: Convert to fraction form
    73,658.88/101,649.28 = 40,124.88/x
  3. Step 3: Cross multiply
    73,658.88x = 101,649.28 × 40,124.88
  4. Step 4: Simplify right side
    73,658.88x = 4,078,665,162.09
  5. Step 5: Solve for x
    x = 4,078,665,162.09/73,658.88
  6. Step 6: Final answer
    x = 55,372.35

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1.5x scale

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.