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Finding the Fourth Proportional to 89,336,089.20, 133,720,698.60 and 89,336,089.20

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Solution

The fourth proportional to 89,336,089.20, 133,720,698.60 and 89,336,089.20 is: 133,720,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,336,089.20 : 133,720,698.60 = 89,336,089.20 : x
  2. Step 2: Convert to fraction form
    89,336,089.20/133,720,698.60 = 89,336,089.20/x
  3. Step 3: Cross multiply
    89,336,089.20x = 133,720,698.60 × 89,336,089.20
  4. Step 4: Simplify right side
    89,336,089.20x = 11,946,084,258,015,914
  5. Step 5: Solve for x
    x = 11,946,084,258,015,914/89,336,089.20
  6. Step 6: Final answer
    x = 133,720,698.60

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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.