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Finding the Fourth Proportional to 191,392.73, 286,896.11 and 120,366.12

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Solution

The fourth proportional to 191,392.73, 286,896.11 and 120,366.12 is: 180,427.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,392.73 : 286,896.11 = 120,366.12 : x
  2. Step 2: Convert to fraction form
    191,392.73/286,896.11 = 120,366.12/x
  3. Step 3: Cross multiply
    191,392.73x = 286,896.11 × 120,366.12
  4. Step 4: Simplify right side
    191,392.73x = 34,532,571,001.96
  5. Step 5: Solve for x
    x = 34,532,571,001.96/191,392.73
  6. Step 6: Final answer
    x = 180,427.81

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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.