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Finding the Fourth Proportional to 191,559.92, 287,390.84 and 157,887.36

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Solution

The fourth proportional to 191,559.92, 287,390.84 and 157,887.36 is: 236,873.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,559.92 : 287,390.84 = 157,887.36 : x
  2. Step 2: Convert to fraction form
    191,559.92/287,390.84 = 157,887.36/x
  3. Step 3: Cross multiply
    191,559.92x = 287,390.84 × 157,887.36
  4. Step 4: Simplify right side
    191,559.92x = 45,375,381,015.78
  5. Step 5: Solve for x
    x = 45,375,381,015.78/191,559.92
  6. Step 6: Final answer
    x = 236,873.04

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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.