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Finding the Fourth Proportional to 191,392.67, 286,896.01 and 120,366.06

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Solution

The fourth proportional to 191,392.67, 286,896.01 and 120,366.06 is: 180,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,392.67 : 286,896.01 = 120,366.06 : x
  2. Step 2: Convert to fraction form
    191,392.67/286,896.01 = 120,366.06/x
  3. Step 3: Cross multiply
    191,392.67x = 286,896.01 × 120,366.06
  4. Step 4: Simplify right side
    191,392.67x = 34,532,540,918.94
  5. Step 5: Solve for x
    x = 34,532,540,918.94/191,392.67
  6. Step 6: Final answer
    x = 180,427.71

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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.