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Finding the Fourth Proportional to 9,964,155.30, 14,919,660.90 and 9,964,155.30

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Solution

The fourth proportional to 9,964,155.30, 14,919,660.90 and 9,964,155.30 is: 14,919,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964,155.30 : 14,919,660.90 = 9,964,155.30 : x
  2. Step 2: Convert to fraction form
    9,964,155.30/14,919,660.90 = 9,964,155.30/x
  3. Step 3: Cross multiply
    9,964,155.30x = 14,919,660.90 × 9,964,155.30
  4. Step 4: Simplify right side
    9,964,155.30x = 148,661,818,230,937.78
  5. Step 5: Solve for x
    x = 148,661,818,230,937.78/9,964,155.30
  6. Step 6: Final answer
    x = 14,919,660.90

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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.