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Finding the Fourth Proportional to 223,426.64, 308,642.08 and 203,247.92

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Solution

The fourth proportional to 223,426.64, 308,642.08 and 203,247.92 is: 280,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,426.64 : 308,642.08 = 203,247.92 : x
  2. Step 2: Convert to fraction form
    223,426.64/308,642.08 = 203,247.92/x
  3. Step 3: Cross multiply
    223,426.64x = 308,642.08 × 203,247.92
  4. Step 4: Simplify right side
    223,426.64x = 62,730,860,784.47
  5. Step 5: Solve for x
    x = 62,730,860,784.47/223,426.64
  6. Step 6: Final answer
    x = 280,767.15

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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.