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Finding the Fourth Proportional to 89,163,628.20, 133,745,442.30 and 89,163,628.20

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Solution

The fourth proportional to 89,163,628.20, 133,745,442.30 and 89,163,628.20 is: 133,745,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,163,628.20 : 133,745,442.30 = 89,163,628.20 : x
  2. Step 2: Convert to fraction form
    89,163,628.20/133,745,442.30 = 89,163,628.20/x
  3. Step 3: Cross multiply
    89,163,628.20x = 133,745,442.30 × 89,163,628.20
  4. Step 4: Simplify right side
    89,163,628.20x = 11,925,228,890,681,752
  5. Step 5: Solve for x
    x = 11,925,228,890,681,752/89,163,628.20
  6. Step 6: Final answer
    x = 133,745,442.30

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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.