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Finding the Fourth Proportional to 69,435.98, 95,831.19 and 42,573.74

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Solution

The fourth proportional to 69,435.98, 95,831.19 and 42,573.74 is: 58,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,435.98 : 95,831.19 = 42,573.74 : x
  2. Step 2: Convert to fraction form
    69,435.98/95,831.19 = 42,573.74/x
  3. Step 3: Cross multiply
    69,435.98x = 95,831.19 × 42,573.74
  4. Step 4: Simplify right side
    69,435.98x = 4,079,892,166.95
  5. Step 5: Solve for x
    x = 4,079,892,166.95/69,435.98
  6. Step 6: Final answer
    x = 58,757.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.