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Finding the Fourth Proportional to 55,765,872.80, 83,648,809.20 and 44,286,747.20

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Solution

The fourth proportional to 55,765,872.80, 83,648,809.20 and 44,286,747.20 is: 66,430,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,765,872.80 : 83,648,809.20 = 44,286,747.20 : x
  2. Step 2: Convert to fraction form
    55,765,872.80/83,648,809.20 = 44,286,747.20/x
  3. Step 3: Cross multiply
    55,765,872.80x = 83,648,809.20 × 44,286,747.20
  4. Step 4: Simplify right side
    55,765,872.80x = 3,704,533,666,621,434.50
  5. Step 5: Solve for x
    x = 3,704,533,666,621,434.50/55,765,872.80
  6. Step 6: Final answer
    x = 66,430,120.80

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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.