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Finding the Fourth Proportional to 191,454.56, 287,313.08 and 66,795.56

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Solution

The fourth proportional to 191,454.56, 287,313.08 and 66,795.56 is: 100,239.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,454.56 : 287,313.08 = 66,795.56 : x
  2. Step 2: Convert to fraction form
    191,454.56/287,313.08 = 66,795.56/x
  3. Step 3: Cross multiply
    191,454.56x = 287,313.08 × 66,795.56
  4. Step 4: Simplify right side
    191,454.56x = 19,191,238,073.92
  5. Step 5: Solve for x
    x = 19,191,238,073.92/191,454.56
  6. Step 6: Final answer
    x = 100,239.13

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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.