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Finding the Fourth Proportional to 90,804.60, 125,309.97 and 50,522.22

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Solution

The fourth proportional to 90,804.60, 125,309.97 and 50,522.22 is: 69,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,804.60 : 125,309.97 = 50,522.22 : x
  2. Step 2: Convert to fraction form
    90,804.60/125,309.97 = 50,522.22/x
  3. Step 3: Cross multiply
    90,804.60x = 125,309.97 × 50,522.22
  4. Step 4: Simplify right side
    90,804.60x = 6,330,937,872.53
  5. Step 5: Solve for x
    x = 6,330,937,872.53/90,804.60
  6. Step 6: Final answer
    x = 69,720.45

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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.