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Finding the Fourth Proportional to 308,766.60, 463,106.70 and 98,425.80

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Solution

The fourth proportional to 308,766.60, 463,106.70 and 98,425.80 is: 147,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,766.60 : 463,106.70 = 98,425.80 : x
  2. Step 2: Convert to fraction form
    308,766.60/463,106.70 = 98,425.80/x
  3. Step 3: Cross multiply
    308,766.60x = 463,106.70 × 98,425.80
  4. Step 4: Simplify right side
    308,766.60x = 45,581,647,432.86
  5. Step 5: Solve for x
    x = 45,581,647,432.86/308,766.60
  6. Step 6: Final answer
    x = 147,624.93

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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.