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Finding the Fourth Proportional to 191,381.59, 264,104.51 and 105,338.73

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Solution

The fourth proportional to 191,381.59, 264,104.51 and 105,338.73 is: 145,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,381.59 : 264,104.51 = 105,338.73 : x
  2. Step 2: Convert to fraction form
    191,381.59/264,104.51 = 105,338.73/x
  3. Step 3: Cross multiply
    191,381.59x = 264,104.51 × 105,338.73
  4. Step 4: Simplify right side
    191,381.59x = 27,820,434,134.37
  5. Step 5: Solve for x
    x = 27,820,434,134.37/191,381.59
  6. Step 6: Final answer
    x = 145,366.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.