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Finding the Fourth Proportional to 191,998.96, 288,035.50 and 73,661.06

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Solution

The fourth proportional to 191,998.96, 288,035.50 and 73,661.06 is: 110,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,998.96 : 288,035.50 = 73,661.06 : x
  2. Step 2: Convert to fraction form
    191,998.96/288,035.50 = 73,661.06/x
  3. Step 3: Cross multiply
    191,998.96x = 288,035.50 × 73,661.06
  4. Step 4: Simplify right side
    191,998.96x = 21,217,000,247.63
  5. Step 5: Solve for x
    x = 21,217,000,247.63/191,998.96
  6. Step 6: Final answer
    x = 110,505.81

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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.