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Finding the Fourth Proportional to 247,331.50, 341,317.50 and 139,899.22

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Solution

The fourth proportional to 247,331.50, 341,317.50 and 139,899.22 is: 193,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,331.50 : 341,317.50 = 139,899.22 : x
  2. Step 2: Convert to fraction form
    247,331.50/341,317.50 = 139,899.22/x
  3. Step 3: Cross multiply
    247,331.50x = 341,317.50 × 139,899.22
  4. Step 4: Simplify right side
    247,331.50x = 47,750,052,022.35
  5. Step 5: Solve for x
    x = 47,750,052,022.35/247,331.50
  6. Step 6: Final answer
    x = 193,060.94

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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.