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Finding the Fourth Proportional to 59,411.48, 81,933.03 and 40,318.97

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Solution

The fourth proportional to 59,411.48, 81,933.03 and 40,318.97 is: 55,602.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,411.48 : 81,933.03 = 40,318.97 : x
  2. Step 2: Convert to fraction form
    59,411.48/81,933.03 = 40,318.97/x
  3. Step 3: Cross multiply
    59,411.48x = 81,933.03 × 40,318.97
  4. Step 4: Simplify right side
    59,411.48x = 3,303,454,968.91
  5. Step 5: Solve for x
    x = 3,303,454,968.91/59,411.48
  6. Step 6: Final answer
    x = 55,602.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.