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Finding the Fourth Proportional to 90,993.94, 125,572.55 and 50,159.52

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Solution

The fourth proportional to 90,993.94, 125,572.55 and 50,159.52 is: 69,220.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,993.94 : 125,572.55 = 50,159.52 : x
  2. Step 2: Convert to fraction form
    90,993.94/125,572.55 = 50,159.52/x
  3. Step 3: Cross multiply
    90,993.94x = 125,572.55 × 50,159.52
  4. Step 4: Simplify right side
    90,993.94x = 6,298,658,205.31
  5. Step 5: Solve for x
    x = 6,298,658,205.31/90,993.94
  6. Step 6: Final answer
    x = 69,220.64

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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.