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Finding the Fourth Proportional to 110,649,374.10, 155,135,871.90 and 110,649,374.10

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Solution

The fourth proportional to 110,649,374.10, 155,135,871.90 and 110,649,374.10 is: 155,135,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,649,374.10 : 155,135,871.90 = 110,649,374.10 : x
  2. Step 2: Convert to fraction form
    110,649,374.10/155,135,871.90 = 110,649,374.10/x
  3. Step 3: Cross multiply
    110,649,374.10x = 155,135,871.90 × 110,649,374.10
  4. Step 4: Simplify right side
    110,649,374.10x = 17,165,687,126,192,778
  5. Step 5: Solve for x
    x = 17,165,687,126,192,778/110,649,374.10
  6. Step 6: Final answer
    x = 155,135,871.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.