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Finding the Fourth Proportional to 56,657.86, 85,324.08 and 49,350.58

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Solution

The fourth proportional to 56,657.86, 85,324.08 and 49,350.58 is: 74,319.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,657.86 : 85,324.08 = 49,350.58 : x
  2. Step 2: Convert to fraction form
    56,657.86/85,324.08 = 49,350.58/x
  3. Step 3: Cross multiply
    56,657.86x = 85,324.08 × 49,350.58
  4. Step 4: Simplify right side
    56,657.86x = 4,210,792,835.97
  5. Step 5: Solve for x
    x = 4,210,792,835.97/56,657.86
  6. Step 6: Final answer
    x = 74,319.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.