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Finding the Fourth Proportional to 349,286.90, 523,930.35 and 112,637.30

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Solution

The fourth proportional to 349,286.90, 523,930.35 and 112,637.30 is: 168,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,286.90 : 523,930.35 = 112,637.30 : x
  2. Step 2: Convert to fraction form
    349,286.90/523,930.35 = 112,637.30/x
  3. Step 3: Cross multiply
    349,286.90x = 523,930.35 × 112,637.30
  4. Step 4: Simplify right side
    349,286.90x = 59,014,100,012.06
  5. Step 5: Solve for x
    x = 59,014,100,012.06/349,286.90
  6. Step 6: Final answer
    x = 168,955.95

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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.