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Finding the Fourth Proportional to 140,995.68, 194,572.69 and 77,333.73

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Solution

The fourth proportional to 140,995.68, 194,572.69 and 77,333.73 is: 106,719.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,995.68 : 194,572.69 = 77,333.73 : x
  2. Step 2: Convert to fraction form
    140,995.68/194,572.69 = 77,333.73/x
  3. Step 3: Cross multiply
    140,995.68x = 194,572.69 × 77,333.73
  4. Step 4: Simplify right side
    140,995.68x = 15,047,031,873.83
  5. Step 5: Solve for x
    x = 15,047,031,873.83/140,995.68
  6. Step 6: Final answer
    x = 106,719.81

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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.