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Finding the Fourth Proportional to 223,241.75, 308,068.44 and 121,264.92

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Solution

The fourth proportional to 223,241.75, 308,068.44 and 121,264.92 is: 167,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,241.75 : 308,068.44 = 121,264.92 : x
  2. Step 2: Convert to fraction form
    223,241.75/308,068.44 = 121,264.92/x
  3. Step 3: Cross multiply
    223,241.75x = 308,068.44 × 121,264.92
  4. Step 4: Simplify right side
    223,241.75x = 37,357,894,731.12
  5. Step 5: Solve for x
    x = 37,357,894,731.12/223,241.75
  6. Step 6: Final answer
    x = 167,342.78

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1.5x scale

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.