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Finding the Fourth Proportional to 73,661.95, 101,650.80 and 45,029.57

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Solution

The fourth proportional to 73,661.95, 101,650.80 and 45,029.57 is: 62,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,661.95 : 101,650.80 = 45,029.57 : x
  2. Step 2: Convert to fraction form
    73,661.95/101,650.80 = 45,029.57/x
  3. Step 3: Cross multiply
    73,661.95x = 101,650.80 × 45,029.57
  4. Step 4: Simplify right side
    73,661.95x = 4,577,291,080.75
  5. Step 5: Solve for x
    x = 4,577,291,080.75/73,661.95
  6. Step 6: Final answer
    x = 62,139.15

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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.