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Finding the Fourth Proportional to 125,448.95, 188,210.39 and 50,530.57

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Solution

The fourth proportional to 125,448.95, 188,210.39 and 50,530.57 is: 75,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,448.95 : 188,210.39 = 50,530.57 : x
  2. Step 2: Convert to fraction form
    125,448.95/188,210.39 = 50,530.57/x
  3. Step 3: Cross multiply
    125,448.95x = 188,210.39 × 50,530.57
  4. Step 4: Simplify right side
    125,448.95x = 9,510,377,563.44
  5. Step 5: Solve for x
    x = 9,510,377,563.44/125,448.95
  6. Step 6: Final answer
    x = 75,810.74

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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.