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Finding the Fourth Proportional to 100,181.76, 150,327.98 and 55,833.51

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Solution

The fourth proportional to 100,181.76, 150,327.98 and 55,833.51 is: 83,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,181.76 : 150,327.98 = 55,833.51 : x
  2. Step 2: Convert to fraction form
    100,181.76/150,327.98 = 55,833.51/x
  3. Step 3: Cross multiply
    100,181.76x = 150,327.98 × 55,833.51
  4. Step 4: Simplify right side
    100,181.76x = 8,393,338,774.61
  5. Step 5: Solve for x
    x = 8,393,338,774.61/100,181.76
  6. Step 6: Final answer
    x = 83,781.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.