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Finding the Fourth Proportional to 308,734.80, 463,102.20 and 109,061.70

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Solution

The fourth proportional to 308,734.80, 463,102.20 and 109,061.70 is: 163,592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,734.80 : 463,102.20 = 109,061.70 : x
  2. Step 2: Convert to fraction form
    308,734.80/463,102.20 = 109,061.70/x
  3. Step 3: Cross multiply
    308,734.80x = 463,102.20 × 109,061.70
  4. Step 4: Simplify right side
    308,734.80x = 50,506,713,205.74
  5. Step 5: Solve for x
    x = 50,506,713,205.74/308,734.80
  6. Step 6: Final answer
    x = 163,592.55

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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.