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Finding the Fourth Proportional to 191,998.98, 288,039.42 and 73,669.32

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Solution

The fourth proportional to 191,998.98, 288,039.42 and 73,669.32 is: 110,519.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,998.98 : 288,039.42 = 73,669.32 : x
  2. Step 2: Convert to fraction form
    191,998.98/288,039.42 = 73,669.32/x
  3. Step 3: Cross multiply
    191,998.98x = 288,039.42 × 73,669.32
  4. Step 4: Simplify right side
    191,998.98x = 21,219,668,204.59
  5. Step 5: Solve for x
    x = 21,219,668,204.59/191,998.98
  6. Step 6: Final answer
    x = 110,519.69

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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.