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Finding the Fourth Proportional to 73,952,814.40, 110,716,645.20 and 45,255,000.40

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Solution

The fourth proportional to 73,952,814.40, 110,716,645.20 and 45,255,000.40 is: 67,752,415.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,952,814.40 : 110,716,645.20 = 45,255,000.40 : x
  2. Step 2: Convert to fraction form
    73,952,814.40/110,716,645.20 = 45,255,000.40/x
  3. Step 3: Cross multiply
    73,952,814.40x = 110,716,645.20 × 45,255,000.40
  4. Step 4: Simplify right side
    73,952,814.40x = 5,010,481,822,812,658
  5. Step 5: Solve for x
    x = 5,010,481,822,812,658/73,952,814.40
  6. Step 6: Final answer
    x = 67,752,415.69

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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.