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Finding the Fourth Proportional to 191,763.09, 287,686.17 and 73,434.44

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Solution

The fourth proportional to 191,763.09, 287,686.17 and 73,434.44 is: 110,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,763.09 : 287,686.17 = 73,434.44 : x
  2. Step 2: Convert to fraction form
    191,763.09/287,686.17 = 73,434.44/x
  3. Step 3: Cross multiply
    191,763.09x = 287,686.17 × 73,434.44
  4. Step 4: Simplify right side
    191,763.09x = 21,126,071,351.26
  5. Step 5: Solve for x
    x = 21,126,071,351.26/191,763.09
  6. Step 6: Final answer
    x = 110,167.56

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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.