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Finding the Fourth Proportional to 73,458.78, 101,373.90 and 39,924.78

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Solution

The fourth proportional to 73,458.78, 101,373.90 and 39,924.78 is: 55,096.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,458.78 : 101,373.90 = 39,924.78 : x
  2. Step 2: Convert to fraction form
    73,458.78/101,373.90 = 39,924.78/x
  3. Step 3: Cross multiply
    73,458.78x = 101,373.90 × 39,924.78
  4. Step 4: Simplify right side
    73,458.78x = 4,047,330,655.24
  5. Step 5: Solve for x
    x = 4,047,330,655.24/73,458.78
  6. Step 6: Final answer
    x = 55,096.62

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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.