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Finding the Fourth Proportional to 191,592, 287,642.34 and 163,691.28

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Solution

The fourth proportional to 191,592, 287,642.34 and 163,691.28 is: 245,754.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,592 : 287,642.34 = 163,691.28 : x
  2. Step 2: Convert to fraction form
    191,592/287,642.34 = 163,691.28/x
  3. Step 3: Cross multiply
    191,592x = 287,642.34 × 163,691.28
  4. Step 4: Simplify right side
    191,592x = 47,084,542,816.80
  5. Step 5: Solve for x
    x = 47,084,542,816.80/191,592
  6. Step 6: Final answer
    x = 245,754.22

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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.