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Finding the Fourth Proportional to 247,893.70, 342,085.89 and 134,716.66

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Solution

The fourth proportional to 247,893.70, 342,085.89 and 134,716.66 is: 185,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,893.70 : 342,085.89 = 134,716.66 : x
  2. Step 2: Convert to fraction form
    247,893.70/342,085.89 = 134,716.66/x
  3. Step 3: Cross multiply
    247,893.70x = 342,085.89 × 134,716.66
  4. Step 4: Simplify right side
    247,893.70x = 46,084,668,533.93
  5. Step 5: Solve for x
    x = 46,084,668,533.93/247,893.70
  6. Step 6: Final answer
    x = 185,904.96

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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.