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Finding the Fourth Proportional to 91,246.50, 125,918.85 and 50,960.85

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Solution

The fourth proportional to 91,246.50, 125,918.85 and 50,960.85 is: 70,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,246.50 : 125,918.85 = 50,960.85 : x
  2. Step 2: Convert to fraction form
    91,246.50/125,918.85 = 50,960.85/x
  3. Step 3: Cross multiply
    91,246.50x = 125,918.85 × 50,960.85
  4. Step 4: Simplify right side
    91,246.50x = 6,416,931,345.93
  5. Step 5: Solve for x
    x = 6,416,931,345.93/91,246.50
  6. Step 6: Final answer
    x = 70,325.23

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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.