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Finding the Fourth Proportional to 91,242.52, 125,899.32 and 50,954.80

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Solution

The fourth proportional to 91,242.52, 125,899.32 and 50,954.80 is: 70,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,242.52 : 125,899.32 = 50,954.80 : x
  2. Step 2: Convert to fraction form
    91,242.52/125,899.32 = 50,954.80/x
  3. Step 3: Cross multiply
    91,242.52x = 125,899.32 × 50,954.80
  4. Step 4: Simplify right side
    91,242.52x = 6,415,174,670.74
  5. Step 5: Solve for x
    x = 6,415,174,670.74/91,242.52
  6. Step 6: Final answer
    x = 70,309.05

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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.