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Finding the Fourth Proportional to 100,696.28, 151,036.43 and 58,549.46

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Solution

The fourth proportional to 100,696.28, 151,036.43 and 58,549.46 is: 87,819.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,696.28 : 151,036.43 = 58,549.46 : x
  2. Step 2: Convert to fraction form
    100,696.28/151,036.43 = 58,549.46/x
  3. Step 3: Cross multiply
    100,696.28x = 151,036.43 × 58,549.46
  4. Step 4: Simplify right side
    100,696.28x = 8,843,100,368.90
  5. Step 5: Solve for x
    x = 8,843,100,368.90/100,696.28
  6. Step 6: Final answer
    x = 87,819.54

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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.