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Finding the Fourth Proportional to 101,491.29, 140,023.85 and 59,014.89

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Solution

The fourth proportional to 101,491.29, 140,023.85 and 59,014.89 is: 81,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,491.29 : 140,023.85 = 59,014.89 : x
  2. Step 2: Convert to fraction form
    101,491.29/140,023.85 = 59,014.89/x
  3. Step 3: Cross multiply
    101,491.29x = 140,023.85 × 59,014.89
  4. Step 4: Simplify right side
    101,491.29x = 8,263,491,810.05
  5. Step 5: Solve for x
    x = 8,263,491,810.05/101,491.29
  6. Step 6: Final answer
    x = 81,420.70

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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.