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Finding the Fourth Proportional to 191,199.96, 286,239.22 and 134,075.79

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Solution

The fourth proportional to 191,199.96, 286,239.22 and 134,075.79 is: 200,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,199.96 : 286,239.22 = 134,075.79 : x
  2. Step 2: Convert to fraction form
    191,199.96/286,239.22 = 134,075.79/x
  3. Step 3: Cross multiply
    191,199.96x = 286,239.22 × 134,075.79
  4. Step 4: Simplify right side
    191,199.96x = 38,377,749,215.29
  5. Step 5: Solve for x
    x = 38,377,749,215.29/191,199.96
  6. Step 6: Final answer
    x = 200,720.49

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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.