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Finding the Fourth Proportional to 308,873.60, 463,310.40 and 98,532.80

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Solution

The fourth proportional to 308,873.60, 463,310.40 and 98,532.80 is: 147,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,873.60 : 463,310.40 = 98,532.80 : x
  2. Step 2: Convert to fraction form
    308,873.60/463,310.40 = 98,532.80/x
  3. Step 3: Cross multiply
    308,873.60x = 463,310.40 × 98,532.80
  4. Step 4: Simplify right side
    308,873.60x = 45,651,270,981.12
  5. Step 5: Solve for x
    x = 45,651,270,981.12/308,873.60
  6. Step 6: Final answer
    x = 147,799.20

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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.