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Finding the Fourth Proportional to 239,363.66, 330,317.87 and 131,943.66

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Solution

The fourth proportional to 239,363.66, 330,317.87 and 131,943.66 is: 182,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,363.66 : 330,317.87 = 131,943.66 : x
  2. Step 2: Convert to fraction form
    239,363.66/330,317.87 = 131,943.66/x
  3. Step 3: Cross multiply
    239,363.66x = 330,317.87 × 131,943.66
  4. Step 4: Simplify right side
    239,363.66x = 43,583,348,071.49
  5. Step 5: Solve for x
    x = 43,583,348,071.49/239,363.66
  6. Step 6: Final answer
    x = 182,080.06

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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.