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Finding the Fourth Proportional to 67,151,996.80, 100,752,878.40 and 26,791,446.40

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Solution

The fourth proportional to 67,151,996.80, 100,752,878.40 and 26,791,446.40 is: 40,197,097.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,151,996.80 : 100,752,878.40 = 26,791,446.40 : x
  2. Step 2: Convert to fraction form
    67,151,996.80/100,752,878.40 = 26,791,446.40/x
  3. Step 3: Cross multiply
    67,151,996.80x = 100,752,878.40 × 26,791,446.40
  4. Step 4: Simplify right side
    67,151,996.80x = 2,699,315,341,299,318
  5. Step 5: Solve for x
    x = 2,699,315,341,299,318/67,151,996.80
  6. Step 6: Final answer
    x = 40,197,097.18

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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.