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Finding the Fourth Proportional to 191,215.71, 286,262.82 and 134,091.54

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Solution

The fourth proportional to 191,215.71, 286,262.82 and 134,091.54 is: 200,744.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,215.71 : 286,262.82 = 134,091.54 : x
  2. Step 2: Convert to fraction form
    191,215.71/286,262.82 = 134,091.54/x
  3. Step 3: Cross multiply
    191,215.71x = 286,262.82 × 134,091.54
  4. Step 4: Simplify right side
    191,215.71x = 38,385,422,378.54
  5. Step 5: Solve for x
    x = 38,385,422,378.54/191,215.71
  6. Step 6: Final answer
    x = 200,744.08

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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.