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Finding the Fourth Proportional to 418,066.32, 627,056.76 and 114,487.47

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Solution

The fourth proportional to 418,066.32, 627,056.76 and 114,487.47 is: 171,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,066.32 : 627,056.76 = 114,487.47 : x
  2. Step 2: Convert to fraction form
    418,066.32/627,056.76 = 114,487.47/x
  3. Step 3: Cross multiply
    418,066.32x = 627,056.76 × 114,487.47
  4. Step 4: Simplify right side
    418,066.32x = 71,790,141,998.80
  5. Step 5: Solve for x
    x = 71,790,141,998.80/418,066.32
  6. Step 6: Final answer
    x = 171,719.51

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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.