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Finding the Fourth Proportional to 236,709.76, 326,574.84 and 139,893.16

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Solution

The fourth proportional to 236,709.76, 326,574.84 and 139,893.16 is: 193,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,709.76 : 326,574.84 = 139,893.16 : x
  2. Step 2: Convert to fraction form
    236,709.76/326,574.84 = 139,893.16/x
  3. Step 3: Cross multiply
    236,709.76x = 326,574.84 × 139,893.16
  4. Step 4: Simplify right side
    236,709.76x = 45,685,586,344.09
  5. Step 5: Solve for x
    x = 45,685,586,344.09/236,709.76
  6. Step 6: Final answer
    x = 193,002.55

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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.