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Finding the Fourth Proportional to 91,246.75, 125,911.50 and 50,959.63

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Solution

The fourth proportional to 91,246.75, 125,911.50 and 50,959.63 is: 70,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,246.75 : 125,911.50 = 50,959.63 : x
  2. Step 2: Convert to fraction form
    91,246.75/125,911.50 = 50,959.63/x
  3. Step 3: Cross multiply
    91,246.75x = 125,911.50 × 50,959.63
  4. Step 4: Simplify right side
    91,246.75x = 6,416,403,452.75
  5. Step 5: Solve for x
    x = 6,416,403,452.75/91,246.75
  6. Step 6: Final answer
    x = 70,319.25

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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.