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Finding the Fourth Proportional to 434,734.60, 652,215.30 and 168,503.80

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Solution

The fourth proportional to 434,734.60, 652,215.30 and 168,503.80 is: 252,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,734.60 : 652,215.30 = 168,503.80 : x
  2. Step 2: Convert to fraction form
    434,734.60/652,215.30 = 168,503.80/x
  3. Step 3: Cross multiply
    434,734.60x = 652,215.30 × 168,503.80
  4. Step 4: Simplify right side
    434,734.60x = 109,900,756,468.14
  5. Step 5: Solve for x
    x = 109,900,756,468.14/434,734.60
  6. Step 6: Final answer
    x = 252,799.65

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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.