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Finding the Fourth Proportional to 209,952,521.70, 314,928,782.55 and 73,588,697.70

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Solution

The fourth proportional to 209,952,521.70, 314,928,782.55 and 73,588,697.70 is: 110,383,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,521.70 : 314,928,782.55 = 73,588,697.70 : x
  2. Step 2: Convert to fraction form
    209,952,521.70/314,928,782.55 = 73,588,697.70/x
  3. Step 3: Cross multiply
    209,952,521.70x = 314,928,782.55 × 73,588,697.70
  4. Step 4: Simplify right side
    209,952,521.70x = 23,175,198,976,100,988
  5. Step 5: Solve for x
    x = 23,175,198,976,100,988/209,952,521.70
  6. Step 6: Final answer
    x = 110,383,046.55

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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.