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Finding the Fourth Proportional to 121,990.44, 182,994.88 and 37,759.15

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Solution

The fourth proportional to 121,990.44, 182,994.88 and 37,759.15 is: 56,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,990.44 : 182,994.88 = 37,759.15 : x
  2. Step 2: Convert to fraction form
    121,990.44/182,994.88 = 37,759.15/x
  3. Step 3: Cross multiply
    121,990.44x = 182,994.88 × 37,759.15
  4. Step 4: Simplify right side
    121,990.44x = 6,909,731,123.15
  5. Step 5: Solve for x
    x = 6,909,731,123.15/121,990.44
  6. Step 6: Final answer
    x = 56,641.58

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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.