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Finding the Fourth Proportional to 308,752.97, 463,064.64 and 87,085.13

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Solution

The fourth proportional to 308,752.97, 463,064.64 and 87,085.13 is: 130,609.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,752.97 : 463,064.64 = 87,085.13 : x
  2. Step 2: Convert to fraction form
    308,752.97/463,064.64 = 87,085.13/x
  3. Step 3: Cross multiply
    308,752.97x = 463,064.64 × 87,085.13
  4. Step 4: Simplify right side
    308,752.97x = 40,326,042,057.48
  5. Step 5: Solve for x
    x = 40,326,042,057.48/308,752.97
  6. Step 6: Final answer
    x = 130,609.41

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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.