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Finding the Fourth Proportional to 111,039.68, 153,234.96 and 60,738.68

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Solution

The fourth proportional to 111,039.68, 153,234.96 and 60,738.68 is: 83,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,039.68 : 153,234.96 = 60,738.68 : x
  2. Step 2: Convert to fraction form
    111,039.68/153,234.96 = 60,738.68/x
  3. Step 3: Cross multiply
    111,039.68x = 153,234.96 × 60,738.68
  4. Step 4: Simplify right side
    111,039.68x = 9,307,289,200.25
  5. Step 5: Solve for x
    x = 9,307,289,200.25/111,039.68
  6. Step 6: Final answer
    x = 83,819.49

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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.