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Finding the Fourth Proportional to 170,394.66, 235,184.67 and 105,912.54

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Solution

The fourth proportional to 170,394.66, 235,184.67 and 105,912.54 is: 146,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,394.66 : 235,184.67 = 105,912.54 : x
  2. Step 2: Convert to fraction form
    170,394.66/235,184.67 = 105,912.54/x
  3. Step 3: Cross multiply
    170,394.66x = 235,184.67 × 105,912.54
  4. Step 4: Simplify right side
    170,394.66x = 24,909,005,768.76
  5. Step 5: Solve for x
    x = 24,909,005,768.76/170,394.66
  6. Step 6: Final answer
    x = 146,184.19

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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.