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Finding the Fourth Proportional to 66,680.35, 100,098.67 and 52,649.84

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Solution

The fourth proportional to 66,680.35, 100,098.67 and 52,649.84 is: 79,036.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,680.35 : 100,098.67 = 52,649.84 : x
  2. Step 2: Convert to fraction form
    66,680.35/100,098.67 = 52,649.84/x
  3. Step 3: Cross multiply
    66,680.35x = 100,098.67 × 52,649.84
  4. Step 4: Simplify right side
    66,680.35x = 5,270,178,959.71
  5. Step 5: Solve for x
    x = 5,270,178,959.71/66,680.35
  6. Step 6: Final answer
    x = 79,036.46

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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.