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Finding the Fourth Proportional to 101,673.92, 140,308.33 and 56,351.76

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Solution

The fourth proportional to 101,673.92, 140,308.33 and 56,351.76 is: 77,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,673.92 : 140,308.33 = 56,351.76 : x
  2. Step 2: Convert to fraction form
    101,673.92/140,308.33 = 56,351.76/x
  3. Step 3: Cross multiply
    101,673.92x = 140,308.33 × 56,351.76
  4. Step 4: Simplify right side
    101,673.92x = 7,906,621,338.16
  5. Step 5: Solve for x
    x = 7,906,621,338.16/101,673.92
  6. Step 6: Final answer
    x = 77,764.50

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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.