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Finding the Fourth Proportional to 387,574.86, 581,362.56 and 107,092.38

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Solution

The fourth proportional to 387,574.86, 581,362.56 and 107,092.38 is: 160,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,574.86 : 581,362.56 = 107,092.38 : x
  2. Step 2: Convert to fraction form
    387,574.86/581,362.56 = 107,092.38/x
  3. Step 3: Cross multiply
    387,574.86x = 581,362.56 × 107,092.38
  4. Step 4: Simplify right side
    387,574.86x = 62,259,500,193.29
  5. Step 5: Solve for x
    x = 62,259,500,193.29/387,574.86
  6. Step 6: Final answer
    x = 160,638.64

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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.