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Finding the Fourth Proportional to 274,223.01, 411,308.59 and 87,201.57

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Solution

The fourth proportional to 274,223.01, 411,308.59 and 87,201.57 is: 130,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,223.01 : 411,308.59 = 87,201.57 : x
  2. Step 2: Convert to fraction form
    274,223.01/411,308.59 = 87,201.57/x
  3. Step 3: Cross multiply
    274,223.01x = 411,308.59 × 87,201.57
  4. Step 4: Simplify right side
    274,223.01x = 35,866,754,802.49
  5. Step 5: Solve for x
    x = 35,866,754,802.49/274,223.01
  6. Step 6: Final answer
    x = 130,794.11

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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.