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Finding the Fourth Proportional to 418,007.32, 627,000.02 and 148,131.52

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Solution

The fourth proportional to 418,007.32, 627,000.02 and 148,131.52 is: 222,193.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,007.32 : 627,000.02 = 148,131.52 : x
  2. Step 2: Convert to fraction form
    418,007.32/627,000.02 = 148,131.52/x
  3. Step 3: Cross multiply
    418,007.32x = 627,000.02 × 148,131.52
  4. Step 4: Simplify right side
    418,007.32x = 92,878,466,002.63
  5. Step 5: Solve for x
    x = 92,878,466,002.63/418,007.32
  6. Step 6: Final answer
    x = 222,193.40

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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.