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Finding the Fourth Proportional to 222,560.98, 307,124.13 and 121,956.82

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Solution

The fourth proportional to 222,560.98, 307,124.13 and 121,956.82 is: 168,294.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,560.98 : 307,124.13 = 121,956.82 : x
  2. Step 2: Convert to fraction form
    222,560.98/307,124.13 = 121,956.82/x
  3. Step 3: Cross multiply
    222,560.98x = 307,124.13 × 121,956.82
  4. Step 4: Simplify right side
    222,560.98x = 37,455,882,240.07
  5. Step 5: Solve for x
    x = 37,455,882,240.07/222,560.98
  6. Step 6: Final answer
    x = 168,294.92

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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.