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Finding the Fourth Proportional to 120,222.58, 165,919.49 and 69,237.22

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Solution

The fourth proportional to 120,222.58, 165,919.49 and 69,237.22 is: 95,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,222.58 : 165,919.49 = 69,237.22 : x
  2. Step 2: Convert to fraction form
    120,222.58/165,919.49 = 69,237.22/x
  3. Step 3: Cross multiply
    120,222.58x = 165,919.49 × 69,237.22
  4. Step 4: Simplify right side
    120,222.58x = 11,487,804,231.42
  5. Step 5: Solve for x
    x = 11,487,804,231.42/120,222.58
  6. Step 6: Final answer
    x = 95,554.46

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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.