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Finding the Fourth Proportional to 73,284.48, 101,133.12 and 39,750.72

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Solution

The fourth proportional to 73,284.48, 101,133.12 and 39,750.72 is: 54,856.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,284.48 : 101,133.12 = 39,750.72 : x
  2. Step 2: Convert to fraction form
    73,284.48/101,133.12 = 39,750.72/x
  3. Step 3: Cross multiply
    73,284.48x = 101,133.12 × 39,750.72
  4. Step 4: Simplify right side
    73,284.48x = 4,020,114,335.85
  5. Step 5: Solve for x
    x = 4,020,114,335.85/73,284.48
  6. Step 6: Final answer
    x = 54,856.29

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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.