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Finding the Fourth Proportional to 101,851.20, 140,552.54 and 56,526.52

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Solution

The fourth proportional to 101,851.20, 140,552.54 and 56,526.52 is: 78,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,851.20 : 140,552.54 = 56,526.52 : x
  2. Step 2: Convert to fraction form
    101,851.20/140,552.54 = 56,526.52/x
  3. Step 3: Cross multiply
    101,851.20x = 140,552.54 × 56,526.52
  4. Step 4: Simplify right side
    101,851.20x = 7,944,945,680.73
  5. Step 5: Solve for x
    x = 7,944,945,680.73/101,851.20
  6. Step 6: Final answer
    x = 78,005.42

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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.