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Finding the Fourth Proportional to 191,994.82, 288,120.78 and 79,675.14

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Solution

The fourth proportional to 191,994.82, 288,120.78 and 79,675.14 is: 119,566.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,994.82 : 288,120.78 = 79,675.14 : x
  2. Step 2: Convert to fraction form
    191,994.82/288,120.78 = 79,675.14/x
  3. Step 3: Cross multiply
    191,994.82x = 288,120.78 × 79,675.14
  4. Step 4: Simplify right side
    191,994.82x = 22,956,063,483.41
  5. Step 5: Solve for x
    x = 22,956,063,483.41/191,994.82
  6. Step 6: Final answer
    x = 119,566.06

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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.