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Finding the Fourth Proportional to 161,239.78, 241,888.75 and 66,418.22

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Solution

The fourth proportional to 161,239.78, 241,888.75 and 66,418.22 is: 99,639.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,239.78 : 241,888.75 = 66,418.22 : x
  2. Step 2: Convert to fraction form
    161,239.78/241,888.75 = 66,418.22/x
  3. Step 3: Cross multiply
    161,239.78x = 241,888.75 × 66,418.22
  4. Step 4: Simplify right side
    161,239.78x = 16,065,820,213.03
  5. Step 5: Solve for x
    x = 16,065,820,213.03/161,239.78
  6. Step 6: Final answer
    x = 99,639.31

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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.