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Finding the Fourth Proportional to 99,663,976.20, 149,495,964.30 and 99,663,976.20

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Solution

The fourth proportional to 99,663,976.20, 149,495,964.30 and 99,663,976.20 is: 149,495,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,663,976.20 : 149,495,964.30 = 99,663,976.20 : x
  2. Step 2: Convert to fraction form
    99,663,976.20/149,495,964.30 = 99,663,976.20/x
  3. Step 3: Cross multiply
    99,663,976.20x = 149,495,964.30 × 99,663,976.20
  4. Step 4: Simplify right side
    99,663,976.20x = 14,899,362,227,991,252
  5. Step 5: Solve for x
    x = 14,899,362,227,991,252/99,663,976.20
  6. Step 6: Final answer
    x = 149,495,964.30

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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.