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Finding the Fourth Proportional to 191,638.84, 287,352.44 and 88,944.20

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Solution

The fourth proportional to 191,638.84, 287,352.44 and 88,944.20 is: 133,367.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,638.84 : 287,352.44 = 88,944.20 : x
  2. Step 2: Convert to fraction form
    191,638.84/287,352.44 = 88,944.20/x
  3. Step 3: Cross multiply
    191,638.84x = 287,352.44 × 88,944.20
  4. Step 4: Simplify right side
    191,638.84x = 25,558,332,893.85
  5. Step 5: Solve for x
    x = 25,558,332,893.85/191,638.84
  6. Step 6: Final answer
    x = 133,367.19

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1.5x scale

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.