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Finding the Fourth Proportional to 242,919.68, 364,338.21 and 65,387.12

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Solution

The fourth proportional to 242,919.68, 364,338.21 and 65,387.12 is: 98,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,919.68 : 364,338.21 = 65,387.12 : x
  2. Step 2: Convert to fraction form
    242,919.68/364,338.21 = 65,387.12/x
  3. Step 3: Cross multiply
    242,919.68x = 364,338.21 × 65,387.12
  4. Step 4: Simplify right side
    242,919.68x = 23,823,026,257.86
  5. Step 5: Solve for x
    x = 23,823,026,257.86/242,919.68
  6. Step 6: Final answer
    x = 98,069.56

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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.