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Finding the Fourth Proportional to 264,037.20, 396,055.80 and 121,882.20

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Solution

The fourth proportional to 264,037.20, 396,055.80 and 121,882.20 is: 182,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,037.20 : 396,055.80 = 121,882.20 : x
  2. Step 2: Convert to fraction form
    264,037.20/396,055.80 = 121,882.20/x
  3. Step 3: Cross multiply
    264,037.20x = 396,055.80 × 121,882.20
  4. Step 4: Simplify right side
    264,037.20x = 48,272,152,226.76
  5. Step 5: Solve for x
    x = 48,272,152,226.76/264,037.20
  6. Step 6: Final answer
    x = 182,823.30

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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.