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Finding the Fourth Proportional to 86,801.34, 119,784.76 and 50,994.61

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Solution

The fourth proportional to 86,801.34, 119,784.76 and 50,994.61 is: 70,371.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,801.34 : 119,784.76 = 50,994.61 : x
  2. Step 2: Convert to fraction form
    86,801.34/119,784.76 = 50,994.61/x
  3. Step 3: Cross multiply
    86,801.34x = 119,784.76 × 50,994.61
  4. Step 4: Simplify right side
    86,801.34x = 6,108,377,120.14
  5. Step 5: Solve for x
    x = 6,108,377,120.14/86,801.34
  6. Step 6: Final answer
    x = 70,371.92

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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.