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Finding the Fourth Proportional to 91,041.84, 125,633 and 50,212.68

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Solution

The fourth proportional to 91,041.84, 125,633 and 50,212.68 is: 69,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,041.84 : 125,633 = 50,212.68 : x
  2. Step 2: Convert to fraction form
    91,041.84/125,633 = 50,212.68/x
  3. Step 3: Cross multiply
    91,041.84x = 125,633 × 50,212.68
  4. Step 4: Simplify right side
    91,041.84x = 6,308,369,626.44
  5. Step 5: Solve for x
    x = 6,308,369,626.44/91,041.84
  6. Step 6: Final answer
    x = 69,290.88

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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.