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Finding the Fourth Proportional to 55,319,195.20, 82,978,792.80 and 29,810,027.20

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Solution

The fourth proportional to 55,319,195.20, 82,978,792.80 and 29,810,027.20 is: 44,715,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,319,195.20 : 82,978,792.80 = 29,810,027.20 : x
  2. Step 2: Convert to fraction form
    55,319,195.20/82,978,792.80 = 29,810,027.20/x
  3. Step 3: Cross multiply
    55,319,195.20x = 82,978,792.80 × 29,810,027.20
  4. Step 4: Simplify right side
    55,319,195.20x = 2,473,600,070,391,164
  5. Step 5: Solve for x
    x = 2,473,600,070,391,164/55,319,195.20
  6. Step 6: Final answer
    x = 44,715,040.80

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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.