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Finding the Fourth Proportional to 113,354.40, 169,837.20 and 73,891.20

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Solution

The fourth proportional to 113,354.40, 169,837.20 and 73,891.20 is: 110,710.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,354.40 : 169,837.20 = 73,891.20 : x
  2. Step 2: Convert to fraction form
    113,354.40/169,837.20 = 73,891.20/x
  3. Step 3: Cross multiply
    113,354.40x = 169,837.20 × 73,891.20
  4. Step 4: Simplify right side
    113,354.40x = 12,549,474,512.64
  5. Step 5: Solve for x
    x = 12,549,474,512.64/113,354.40
  6. Step 6: Final answer
    x = 110,710.08

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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.