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Finding the Fourth Proportional to 143,876.48, 215,784.48 and 38,696.36

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Solution

The fourth proportional to 143,876.48, 215,784.48 and 38,696.36 is: 58,036.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,876.48 : 215,784.48 = 38,696.36 : x
  2. Step 2: Convert to fraction form
    143,876.48/215,784.48 = 38,696.36/x
  3. Step 3: Cross multiply
    143,876.48x = 215,784.48 × 38,696.36
  4. Step 4: Simplify right side
    143,876.48x = 8,350,073,920.49
  5. Step 5: Solve for x
    x = 8,350,073,920.49/143,876.48
  6. Step 6: Final answer
    x = 58,036.41

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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.