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Finding the Fourth Proportional to 209,952,223.80, 314,928,335.70 and 196,515,295.80

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Solution

The fourth proportional to 209,952,223.80, 314,928,335.70 and 196,515,295.80 is: 294,772,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,223.80 : 314,928,335.70 = 196,515,295.80 : x
  2. Step 2: Convert to fraction form
    209,952,223.80/314,928,335.70 = 196,515,295.80/x
  3. Step 3: Cross multiply
    209,952,223.80x = 314,928,335.70 × 196,515,295.80
  4. Step 4: Simplify right side
    209,952,223.80x = 61,888,235,045,887,200
  5. Step 5: Solve for x
    x = 61,888,235,045,887,200/209,952,223.80
  6. Step 6: Final answer
    x = 294,772,943.70

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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.