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Finding the Fourth Proportional to 61,130.30, 84,363.88 and 34,274.54

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Solution

The fourth proportional to 61,130.30, 84,363.88 and 34,274.54 is: 47,301.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,130.30 : 84,363.88 = 34,274.54 : x
  2. Step 2: Convert to fraction form
    61,130.30/84,363.88 = 34,274.54/x
  3. Step 3: Cross multiply
    61,130.30x = 84,363.88 × 34,274.54
  4. Step 4: Simplify right side
    61,130.30x = 2,891,533,179.62
  5. Step 5: Solve for x
    x = 2,891,533,179.62/61,130.30
  6. Step 6: Final answer
    x = 47,301.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.