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Finding the Fourth Proportional to 79,246.80, 118,921.75 and 34,312.04

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Solution

The fourth proportional to 79,246.80, 118,921.75 and 34,312.04 is: 51,490.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,246.80 : 118,921.75 = 34,312.04 : x
  2. Step 2: Convert to fraction form
    79,246.80/118,921.75 = 34,312.04/x
  3. Step 3: Cross multiply
    79,246.80x = 118,921.75 × 34,312.04
  4. Step 4: Simplify right side
    79,246.80x = 4,080,448,121.28
  5. Step 5: Solve for x
    x = 4,080,448,121.28/79,246.80
  6. Step 6: Final answer
    x = 51,490.38

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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.