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Finding the Fourth Proportional to 89,337,643.20, 133,723,029.60 and 89,337,643.20

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Solution

The fourth proportional to 89,337,643.20, 133,723,029.60 and 89,337,643.20 is: 133,723,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,337,643.20 : 133,723,029.60 = 89,337,643.20 : x
  2. Step 2: Convert to fraction form
    89,337,643.20/133,723,029.60 = 89,337,643.20/x
  3. Step 3: Cross multiply
    89,337,643.20x = 133,723,029.60 × 89,337,643.20
  4. Step 4: Simplify right side
    89,337,643.20x = 11,946,500,306,027,838
  5. Step 5: Solve for x
    x = 11,946,500,306,027,838/89,337,643.20
  6. Step 6: Final answer
    x = 133,723,029.60

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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.