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Finding the Fourth Proportional to 223,479.86, 308,357.88 and 125,366.24

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Solution

The fourth proportional to 223,479.86, 308,357.88 and 125,366.24 is: 172,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,479.86 : 308,357.88 = 125,366.24 : x
  2. Step 2: Convert to fraction form
    223,479.86/308,357.88 = 125,366.24/x
  3. Step 3: Cross multiply
    223,479.86x = 308,357.88 × 125,366.24
  4. Step 4: Simplify right side
    223,479.86x = 38,657,667,989.97
  5. Step 5: Solve for x
    x = 38,657,667,989.97/223,479.86
  6. Step 6: Final answer
    x = 172,980.55

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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.