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Finding the Fourth Proportional to 191,876.99, 287,441.46 and 116,810.96

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Solution

The fourth proportional to 191,876.99, 287,441.46 and 116,810.96 is: 174,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,876.99 : 287,441.46 = 116,810.96 : x
  2. Step 2: Convert to fraction form
    191,876.99/287,441.46 = 116,810.96/x
  3. Step 3: Cross multiply
    191,876.99x = 287,441.46 × 116,810.96
  4. Step 4: Simplify right side
    191,876.99x = 33,576,311,449.19
  5. Step 5: Solve for x
    x = 33,576,311,449.19/191,876.99
  6. Step 6: Final answer
    x = 174,988.74

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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.