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Finding the Fourth Proportional to 191,404.31, 286,895.03 and 79,022.57

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Solution

The fourth proportional to 191,404.31, 286,895.03 and 79,022.57 is: 118,446.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,404.31 : 286,895.03 = 79,022.57 : x
  2. Step 2: Convert to fraction form
    191,404.31/286,895.03 = 79,022.57/x
  3. Step 3: Cross multiply
    191,404.31x = 286,895.03 × 79,022.57
  4. Step 4: Simplify right side
    191,404.31x = 22,671,180,761.24
  5. Step 5: Solve for x
    x = 22,671,180,761.24/191,404.31
  6. Step 6: Final answer
    x = 118,446.56

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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.