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Finding the Fourth Proportional to 54,248.40, 81,275.40 and 46,472.40

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Solution

The fourth proportional to 54,248.40, 81,275.40 and 46,472.40 is: 69,625.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,248.40 : 81,275.40 = 46,472.40 : x
  2. Step 2: Convert to fraction form
    54,248.40/81,275.40 = 46,472.40/x
  3. Step 3: Cross multiply
    54,248.40x = 81,275.40 × 46,472.40
  4. Step 4: Simplify right side
    54,248.40x = 3,777,062,898.96
  5. Step 5: Solve for x
    x = 3,777,062,898.96/54,248.40
  6. Step 6: Final answer
    x = 69,625.33

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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.