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Finding the Fourth Proportional to 170,842.67, 235,762.85 and 99,227.30

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Solution

The fourth proportional to 170,842.67, 235,762.85 and 99,227.30 is: 136,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,842.67 : 235,762.85 = 99,227.30 : x
  2. Step 2: Convert to fraction form
    170,842.67/235,762.85 = 99,227.30/x
  3. Step 3: Cross multiply
    170,842.67x = 235,762.85 × 99,227.30
  4. Step 4: Simplify right side
    170,842.67x = 23,394,112,104.31
  5. Step 5: Solve for x
    x = 23,394,112,104.31/170,842.67
  6. Step 6: Final answer
    x = 136,933.66

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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.