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Finding the Fourth Proportional to 191,205.87, 286,806.38 and 85,950.42

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Solution

The fourth proportional to 191,205.87, 286,806.38 and 85,950.42 is: 128,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,205.87 : 286,806.38 = 85,950.42 : x
  2. Step 2: Convert to fraction form
    191,205.87/286,806.38 = 85,950.42/x
  3. Step 3: Cross multiply
    191,205.87x = 286,806.38 × 85,950.42
  4. Step 4: Simplify right side
    191,205.87x = 24,651,128,389.93
  5. Step 5: Solve for x
    x = 24,651,128,389.93/191,205.87
  6. Step 6: Final answer
    x = 128,924.54

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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.