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Finding the Fourth Proportional to 74,332.87, 102,664.50 and 48,952.69

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Solution

The fourth proportional to 74,332.87, 102,664.50 and 48,952.69 is: 67,610.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,332.87 : 102,664.50 = 48,952.69 : x
  2. Step 2: Convert to fraction form
    74,332.87/102,664.50 = 48,952.69/x
  3. Step 3: Cross multiply
    74,332.87x = 102,664.50 × 48,952.69
  4. Step 4: Simplify right side
    74,332.87x = 5,025,702,806.80
  5. Step 5: Solve for x
    x = 5,025,702,806.80/74,332.87
  6. Step 6: Final answer
    x = 67,610.77

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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.