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Finding the Fourth Proportional to 215,083.90, 296,814.78 and 119,584.90

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Solution

The fourth proportional to 215,083.90, 296,814.78 and 119,584.90 is: 165,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,083.90 : 296,814.78 = 119,584.90 : x
  2. Step 2: Convert to fraction form
    215,083.90/296,814.78 = 119,584.90/x
  3. Step 3: Cross multiply
    215,083.90x = 296,814.78 × 119,584.90
  4. Step 4: Simplify right side
    215,083.90x = 35,494,565,784.82
  5. Step 5: Solve for x
    x = 35,494,565,784.82/215,083.90
  6. Step 6: Final answer
    x = 165,026.60

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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.