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Finding the Fourth Proportional to 116,406,380.40, 174,609,570.60 and 80,126,674.80

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Solution

The fourth proportional to 116,406,380.40, 174,609,570.60 and 80,126,674.80 is: 120,190,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,406,380.40 : 174,609,570.60 = 80,126,674.80 : x
  2. Step 2: Convert to fraction form
    116,406,380.40/174,609,570.60 = 80,126,674.80/x
  3. Step 3: Cross multiply
    116,406,380.40x = 174,609,570.60 × 80,126,674.80
  4. Step 4: Simplify right side
    116,406,380.40x = 13,990,884,280,433,840
  5. Step 5: Solve for x
    x = 13,990,884,280,433,840/116,406,380.40
  6. Step 6: Final answer
    x = 120,190,012.20

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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.