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Finding the Fourth Proportional to 209,953,753.70, 314,930,630.55 and 73,589,929.70

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Solution

The fourth proportional to 209,953,753.70, 314,930,630.55 and 73,589,929.70 is: 110,384,894.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,753.70 : 314,930,630.55 = 73,589,929.70 : x
  2. Step 2: Convert to fraction form
    209,953,753.70/314,930,630.55 = 73,589,929.70/x
  3. Step 3: Cross multiply
    209,953,753.70x = 314,930,630.55 × 73,589,929.70
  4. Step 4: Simplify right side
    209,953,753.70x = 23,175,722,962,551,176
  5. Step 5: Solve for x
    x = 23,175,722,962,551,176/209,953,753.70
  6. Step 6: Final answer
    x = 110,384,894.55

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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.