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Finding the Fourth Proportional to 180,679.72, 249,379.44 and 120,252.92

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Solution

The fourth proportional to 180,679.72, 249,379.44 and 120,252.92 is: 165,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,679.72 : 249,379.44 = 120,252.92 : x
  2. Step 2: Convert to fraction form
    180,679.72/249,379.44 = 120,252.92/x
  3. Step 3: Cross multiply
    180,679.72x = 249,379.44 × 120,252.92
  4. Step 4: Simplify right side
    180,679.72x = 29,988,605,847.96
  5. Step 5: Solve for x
    x = 29,988,605,847.96/180,679.72
  6. Step 6: Final answer
    x = 165,976.60

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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.