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Finding the Fourth Proportional to 161,116.90, 241,699.95 and 82,188.07

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Solution

The fourth proportional to 161,116.90, 241,699.95 and 82,188.07 is: 123,294.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,116.90 : 241,699.95 = 82,188.07 : x
  2. Step 2: Convert to fraction form
    161,116.90/241,699.95 = 82,188.07/x
  3. Step 3: Cross multiply
    161,116.90x = 241,699.95 × 82,188.07
  4. Step 4: Simplify right side
    161,116.90x = 19,864,851,805.35
  5. Step 5: Solve for x
    x = 19,864,851,805.35/161,116.90
  6. Step 6: Final answer
    x = 123,294.65

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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.