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Finding the Fourth Proportional to 74,271.87, 102,497.81 and 53,101.71

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Solution

The fourth proportional to 74,271.87, 102,497.81 and 53,101.71 is: 73,282.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,271.87 : 102,497.81 = 53,101.71 : x
  2. Step 2: Convert to fraction form
    74,271.87/102,497.81 = 53,101.71/x
  3. Step 3: Cross multiply
    74,271.87x = 102,497.81 × 53,101.71
  4. Step 4: Simplify right side
    74,271.87x = 5,442,808,716.75
  5. Step 5: Solve for x
    x = 5,442,808,716.75/74,271.87
  6. Step 6: Final answer
    x = 73,282.24

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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.