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Finding the Fourth Proportional to 191,637.64, 287,456.46 and 73,345.24

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Solution

The fourth proportional to 191,637.64, 287,456.46 and 73,345.24 is: 110,017.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,637.64 : 287,456.46 = 73,345.24 : x
  2. Step 2: Convert to fraction form
    191,637.64/287,456.46 = 73,345.24/x
  3. Step 3: Cross multiply
    191,637.64x = 287,456.46 × 73,345.24
  4. Step 4: Simplify right side
    191,637.64x = 21,083,563,048.25
  5. Step 5: Solve for x
    x = 21,083,563,048.25/191,637.64
  6. Step 6: Final answer
    x = 110,017.86

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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.