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Finding the Fourth Proportional to 577,356.86, 865,933.23 and 156,665.54

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Solution

The fourth proportional to 577,356.86, 865,933.23 and 156,665.54 is: 234,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,356.86 : 865,933.23 = 156,665.54 : x
  2. Step 2: Convert to fraction form
    577,356.86/865,933.23 = 156,665.54/x
  3. Step 3: Cross multiply
    577,356.86x = 865,933.23 × 156,665.54
  4. Step 4: Simplify right side
    577,356.86x = 135,661,897,081.89
  5. Step 5: Solve for x
    x = 135,661,897,081.89/577,356.86
  6. Step 6: Final answer
    x = 234,970.62

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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.