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Finding the Fourth Proportional to 239,316.89, 330,264.22 and 131,893.84

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Solution

The fourth proportional to 239,316.89, 330,264.22 and 131,893.84 is: 182,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,316.89 : 330,264.22 = 131,893.84 : x
  2. Step 2: Convert to fraction form
    239,316.89/330,264.22 = 131,893.84/x
  3. Step 3: Cross multiply
    239,316.89x = 330,264.22 × 131,893.84
  4. Step 4: Simplify right side
    239,316.89x = 43,559,814,539.08
  5. Step 5: Solve for x
    x = 43,559,814,539.08/239,316.89
  6. Step 6: Final answer
    x = 182,017.31

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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.