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Finding the Fourth Proportional to 191,297.52, 286,972.86 and 84,673.05

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Solution

The fourth proportional to 191,297.52, 286,972.86 and 84,673.05 is: 127,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,297.52 : 286,972.86 = 84,673.05 : x
  2. Step 2: Convert to fraction form
    191,297.52/286,972.86 = 84,673.05/x
  3. Step 3: Cross multiply
    191,297.52x = 286,972.86 × 84,673.05
  4. Step 4: Simplify right side
    191,297.52x = 24,298,867,323.42
  5. Step 5: Solve for x
    x = 24,298,867,323.42/191,297.52
  6. Step 6: Final answer
    x = 127,021.34

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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.