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Finding the Fourth Proportional to 308,130.60, 462,195.90 and 174,959.40

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Solution

The fourth proportional to 308,130.60, 462,195.90 and 174,959.40 is: 262,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,130.60 : 462,195.90 = 174,959.40 : x
  2. Step 2: Convert to fraction form
    308,130.60/462,195.90 = 174,959.40/x
  3. Step 3: Cross multiply
    308,130.60x = 462,195.90 × 174,959.40
  4. Step 4: Simplify right side
    308,130.60x = 80,865,517,346.46
  5. Step 5: Solve for x
    x = 80,865,517,346.46/308,130.60
  6. Step 6: Final answer
    x = 262,439.10

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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.