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Finding the Fourth Proportional to 87,672,236.10, 123,009,869.10 and 87,672,236.10

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Solution

The fourth proportional to 87,672,236.10, 123,009,869.10 and 87,672,236.10 is: 123,009,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,672,236.10 : 123,009,869.10 = 87,672,236.10 : x
  2. Step 2: Convert to fraction form
    87,672,236.10/123,009,869.10 = 87,672,236.10/x
  3. Step 3: Cross multiply
    87,672,236.10x = 123,009,869.10 × 87,672,236.10
  4. Step 4: Simplify right side
    87,672,236.10x = 10,784,550,286,365,294
  5. Step 5: Solve for x
    x = 10,784,550,286,365,294/87,672,236.10
  6. Step 6: Final answer
    x = 123,009,869.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.