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Finding the Fourth Proportional to 79,259,803.10, 118,889,704.65 and 57,648,743.90

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Solution

The fourth proportional to 79,259,803.10, 118,889,704.65 and 57,648,743.90 is: 86,473,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259,803.10 : 118,889,704.65 = 57,648,743.90 : x
  2. Step 2: Convert to fraction form
    79,259,803.10/118,889,704.65 = 57,648,743.90/x
  3. Step 3: Cross multiply
    79,259,803.10x = 118,889,704.65 × 57,648,743.90
  4. Step 4: Simplify right side
    79,259,803.10x = 6,853,842,135,714,489
  5. Step 5: Solve for x
    x = 6,853,842,135,714,489/79,259,803.10
  6. Step 6: Final answer
    x = 86,473,115.85

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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.