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Finding the Fourth Proportional to 311,252.88, 466,888.32 and 121,705.56

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Solution

The fourth proportional to 311,252.88, 466,888.32 and 121,705.56 is: 182,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,252.88 : 466,888.32 = 121,705.56 : x
  2. Step 2: Convert to fraction form
    311,252.88/466,888.32 = 121,705.56/x
  3. Step 3: Cross multiply
    311,252.88x = 466,888.32 × 121,705.56
  4. Step 4: Simplify right side
    311,252.88x = 56,822,904,443.06
  5. Step 5: Solve for x
    x = 56,822,904,443.06/311,252.88
  6. Step 6: Final answer
    x = 182,561.86

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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.