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Finding the Fourth Proportional to 66,948.56, 100,225.60 and 58,644.80

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Solution

The fourth proportional to 66,948.56, 100,225.60 and 58,644.80 is: 87,794.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,948.56 : 100,225.60 = 58,644.80 : x
  2. Step 2: Convert to fraction form
    66,948.56/100,225.60 = 58,644.80/x
  3. Step 3: Cross multiply
    66,948.56x = 100,225.60 × 58,644.80
  4. Step 4: Simplify right side
    66,948.56x = 5,877,710,266.88
  5. Step 5: Solve for x
    x = 5,877,710,266.88/66,948.56
  6. Step 6: Final answer
    x = 87,794.42

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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.