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Finding the Fourth Proportional to 418,008.08, 627,003.48 and 102,466.64

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Solution

The fourth proportional to 418,008.08, 627,003.48 and 102,466.64 is: 153,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,008.08 : 627,003.48 = 102,466.64 : x
  2. Step 2: Convert to fraction form
    418,008.08/627,003.48 = 102,466.64/x
  3. Step 3: Cross multiply
    418,008.08x = 627,003.48 × 102,466.64
  4. Step 4: Simplify right side
    418,008.08x = 64,246,939,863.91
  5. Step 5: Solve for x
    x = 64,246,939,863.91/418,008.08
  6. Step 6: Final answer
    x = 153,697.84

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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.