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Finding the Fourth Proportional to 113,209, 169,839.42 and 39,337

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Solution

The fourth proportional to 113,209, 169,839.42 and 39,337 is: 59,014.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,209 : 169,839.42 = 39,337 : x
  2. Step 2: Convert to fraction form
    113,209/169,839.42 = 39,337/x
  3. Step 3: Cross multiply
    113,209x = 169,839.42 × 39,337
  4. Step 4: Simplify right side
    113,209x = 6,680,973,264.54
  5. Step 5: Solve for x
    x = 6,680,973,264.54/113,209
  6. Step 6: Final answer
    x = 59,014.51

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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.