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Finding the Fourth Proportional to 215,736,552.80, 323,604,829.20 and 215,736,552.80

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Solution

The fourth proportional to 215,736,552.80, 323,604,829.20 and 215,736,552.80 is: 323,604,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,736,552.80 : 323,604,829.20 = 215,736,552.80 : x
  2. Step 2: Convert to fraction form
    215,736,552.80/323,604,829.20 = 215,736,552.80/x
  3. Step 3: Cross multiply
    215,736,552.80x = 323,604,829.20 × 215,736,552.80
  4. Step 4: Simplify right side
    215,736,552.80x = 69,813,390,321,040,784
  5. Step 5: Solve for x
    x = 69,813,390,321,040,784/215,736,552.80
  6. Step 6: Final answer
    x = 323,604,829.20

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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.