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Finding the Fourth Proportional to 120,570.69, 166,349.69 and 69,576.74

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Solution

The fourth proportional to 120,570.69, 166,349.69 and 69,576.74 is: 95,994.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,570.69 : 166,349.69 = 69,576.74 : x
  2. Step 2: Convert to fraction form
    120,570.69/166,349.69 = 69,576.74/x
  3. Step 3: Cross multiply
    120,570.69x = 166,349.69 × 69,576.74
  4. Step 4: Simplify right side
    120,570.69x = 11,574,067,950.58
  5. Step 5: Solve for x
    x = 11,574,067,950.58/120,570.69
  6. Step 6: Final answer
    x = 95,994.04

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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.