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Finding the Fourth Proportional to 101,851.90, 140,552.92 and 56,527.54

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Solution

The fourth proportional to 101,851.90, 140,552.92 and 56,527.54 is: 78,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,851.90 : 140,552.92 = 56,527.54 : x
  2. Step 2: Convert to fraction form
    101,851.90/140,552.92 = 56,527.54/x
  3. Step 3: Cross multiply
    101,851.90x = 140,552.92 × 56,527.54
  4. Step 4: Simplify right side
    101,851.90x = 7,945,110,526.69
  5. Step 5: Solve for x
    x = 7,945,110,526.69/101,851.90
  6. Step 6: Final answer
    x = 78,006.50

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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.