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Finding the Fourth Proportional to 92,210.94, 138,246.24 and 38,919.22

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Solution

The fourth proportional to 92,210.94, 138,246.24 and 38,919.22 is: 58,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,210.94 : 138,246.24 = 38,919.22 : x
  2. Step 2: Convert to fraction form
    92,210.94/138,246.24 = 38,919.22/x
  3. Step 3: Cross multiply
    92,210.94x = 138,246.24 × 38,919.22
  4. Step 4: Simplify right side
    92,210.94x = 5,380,435,629.06
  5. Step 5: Solve for x
    x = 5,380,435,629.06/92,210.94
  6. Step 6: Final answer
    x = 58,349.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.