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Finding the Fourth Proportional to 12,096,905.90, 18,145,359.15 and 12,096,905.90

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Solution

The fourth proportional to 12,096,905.90, 18,145,359.15 and 12,096,905.90 is: 18,145,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,905.90 : 18,145,359.15 = 12,096,905.90 : x
  2. Step 2: Convert to fraction form
    12,096,905.90/18,145,359.15 = 12,096,905.90/x
  3. Step 3: Cross multiply
    12,096,905.90x = 18,145,359.15 × 12,096,905.90
  4. Step 4: Simplify right side
    12,096,905.90x = 219,502,702,159,253.97
  5. Step 5: Solve for x
    x = 219,502,702,159,253.97/12,096,905.90
  6. Step 6: Final answer
    x = 18,145,359.15

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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.