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Finding the Fourth Proportional to 462,981.80, 694,522.52 and 147,364.90

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Solution

The fourth proportional to 462,981.80, 694,522.52 and 147,364.90 is: 221,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,981.80 : 694,522.52 = 147,364.90 : x
  2. Step 2: Convert to fraction form
    462,981.80/694,522.52 = 147,364.90/x
  3. Step 3: Cross multiply
    462,981.80x = 694,522.52 × 147,364.90
  4. Step 4: Simplify right side
    462,981.80x = 102,348,241,707.55
  5. Step 5: Solve for x
    x = 102,348,241,707.55/462,981.80
  6. Step 6: Final answer
    x = 221,063.21

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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.