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Finding the Fourth Proportional to 123,248.73, 184,873.10 and 40,142.73

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Solution

The fourth proportional to 123,248.73, 184,873.10 and 40,142.73 is: 60,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,248.73 : 184,873.10 = 40,142.73 : x
  2. Step 2: Convert to fraction form
    123,248.73/184,873.10 = 40,142.73/x
  3. Step 3: Cross multiply
    123,248.73x = 184,873.10 × 40,142.73
  4. Step 4: Simplify right side
    123,248.73x = 7,421,310,937.56
  5. Step 5: Solve for x
    x = 7,421,310,937.56/123,248.73
  6. Step 6: Final answer
    x = 60,214.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.