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Finding the Fourth Proportional to 191,339.52, 287,073.81 and 84,708.75

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Solution

The fourth proportional to 191,339.52, 287,073.81 and 84,708.75 is: 127,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,339.52 : 287,073.81 = 84,708.75 : x
  2. Step 2: Convert to fraction form
    191,339.52/287,073.81 = 84,708.75/x
  3. Step 3: Cross multiply
    191,339.52x = 287,073.81 × 84,708.75
  4. Step 4: Simplify right side
    191,339.52x = 24,317,662,167.47
  5. Step 5: Solve for x
    x = 24,317,662,167.47/191,339.52
  6. Step 6: Final answer
    x = 127,091.69

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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.