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Finding the Fourth Proportional to 191,715.98, 287,256.11 and 116,608.91

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Solution

The fourth proportional to 191,715.98, 287,256.11 and 116,608.91 is: 174,720.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,715.98 : 287,256.11 = 116,608.91 : x
  2. Step 2: Convert to fraction form
    191,715.98/287,256.11 = 116,608.91/x
  3. Step 3: Cross multiply
    191,715.98x = 287,256.11 × 116,608.91
  4. Step 4: Simplify right side
    191,715.98x = 33,496,619,858.62
  5. Step 5: Solve for x
    x = 33,496,619,858.62/191,715.98
  6. Step 6: Final answer
    x = 174,720.02

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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.