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Finding the Fourth Proportional to 209,952,252.80, 314,928,379.20 and 179,341,251.20

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Solution

The fourth proportional to 209,952,252.80, 314,928,379.20 and 179,341,251.20 is: 269,011,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,252.80 : 314,928,379.20 = 179,341,251.20 : x
  2. Step 2: Convert to fraction form
    209,952,252.80/314,928,379.20 = 179,341,251.20/x
  3. Step 3: Cross multiply
    209,952,252.80x = 314,928,379.20 × 179,341,251.20
  4. Step 4: Simplify right side
    209,952,252.80x = 56,479,649,564,116,048
  5. Step 5: Solve for x
    x = 56,479,649,564,116,048/209,952,252.80
  6. Step 6: Final answer
    x = 269,011,876.80

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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.