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Finding the Fourth Proportional to 215,487.90, 297,383.94 and 119,992.59

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Solution

The fourth proportional to 215,487.90, 297,383.94 and 119,992.59 is: 165,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,487.90 : 297,383.94 = 119,992.59 : x
  2. Step 2: Convert to fraction form
    215,487.90/297,383.94 = 119,992.59/x
  3. Step 3: Cross multiply
    215,487.90x = 297,383.94 × 119,992.59
  4. Step 4: Simplify right side
    215,487.90x = 35,683,869,185.00
  5. Step 5: Solve for x
    x = 35,683,869,185.00/215,487.90
  6. Step 6: Final answer
    x = 165,595.70

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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.