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Finding the Fourth Proportional to 191,700.87, 264,543.65 and 104,486.73

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Solution

The fourth proportional to 191,700.87, 264,543.65 and 104,486.73 is: 144,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,700.87 : 264,543.65 = 104,486.73 : x
  2. Step 2: Convert to fraction form
    191,700.87/264,543.65 = 104,486.73/x
  3. Step 3: Cross multiply
    191,700.87x = 264,543.65 × 104,486.73
  4. Step 4: Simplify right side
    191,700.87x = 27,641,299,808.12
  5. Step 5: Solve for x
    x = 27,641,299,808.12/191,700.87
  6. Step 6: Final answer
    x = 144,189.75

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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.