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Finding the Fourth Proportional to 74,950.32, 103,289.13 and 53,692.68

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Solution

The fourth proportional to 74,950.32, 103,289.13 and 53,692.68 is: 73,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,950.32 : 103,289.13 = 53,692.68 : x
  2. Step 2: Convert to fraction form
    74,950.32/103,289.13 = 53,692.68/x
  3. Step 3: Cross multiply
    74,950.32x = 103,289.13 × 53,692.68
  4. Step 4: Simplify right side
    74,950.32x = 5,545,870,204.57
  5. Step 5: Solve for x
    x = 5,545,870,204.57/74,950.32
  6. Step 6: Final answer
    x = 73,993.95

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1.5x scale

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.