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Finding the Fourth Proportional to 418,061.31, 627,049.26 and 114,482.48

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Solution

The fourth proportional to 418,061.31, 627,049.26 and 114,482.48 is: 171,712.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,061.31 : 627,049.26 = 114,482.48 : x
  2. Step 2: Convert to fraction form
    418,061.31/627,049.26 = 114,482.48/x
  3. Step 3: Cross multiply
    418,061.31x = 627,049.26 × 114,482.48
  4. Step 4: Simplify right side
    418,061.31x = 71,786,154,366.96
  5. Step 5: Solve for x
    x = 71,786,154,366.96/418,061.31
  6. Step 6: Final answer
    x = 171,712.03

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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.