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Finding the Fourth Proportional to 66,738,820.80, 100,108,231.20 and 59,180,548.80

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Solution

The fourth proportional to 66,738,820.80, 100,108,231.20 and 59,180,548.80 is: 88,770,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,738,820.80 : 100,108,231.20 = 59,180,548.80 : x
  2. Step 2: Convert to fraction form
    66,738,820.80/100,108,231.20 = 59,180,548.80/x
  3. Step 3: Cross multiply
    66,738,820.80x = 100,108,231.20 × 59,180,548.80
  4. Step 4: Simplify right side
    66,738,820.80x = 5,924,460,061,813,282
  5. Step 5: Solve for x
    x = 5,924,460,061,813,282/66,738,820.80
  6. Step 6: Final answer
    x = 88,770,823.20

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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.