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Finding the Fourth Proportional to 91,284.80, 125,960.56 and 50,993.58

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Solution

The fourth proportional to 91,284.80, 125,960.56 and 50,993.58 is: 70,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,284.80 : 125,960.56 = 50,993.58 : x
  2. Step 2: Convert to fraction form
    91,284.80/125,960.56 = 50,993.58/x
  3. Step 3: Cross multiply
    91,284.80x = 125,960.56 × 50,993.58
  4. Step 4: Simplify right side
    91,284.80x = 6,423,179,893.20
  5. Step 5: Solve for x
    x = 6,423,179,893.20/91,284.80
  6. Step 6: Final answer
    x = 70,364.18

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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.