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Finding the Fourth Proportional to 54,345.30, 75,927.90 and 54,345.30

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Solution

The fourth proportional to 54,345.30, 75,927.90 and 54,345.30 is: 75,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.30 : 75,927.90 = 54,345.30 : x
  2. Step 2: Convert to fraction form
    54,345.30/75,927.90 = 54,345.30/x
  3. Step 3: Cross multiply
    54,345.30x = 75,927.90 × 54,345.30
  4. Step 4: Simplify right side
    54,345.30x = 4,126,324,503.87
  5. Step 5: Solve for x
    x = 4,126,324,503.87/54,345.30
  6. Step 6: Final answer
    x = 75,927.90

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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.