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Finding the Fourth Proportional to 236,742, 326,690.64 and 134,792.34

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Solution

The fourth proportional to 236,742, 326,690.64 and 134,792.34 is: 186,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,742 : 326,690.64 = 134,792.34 : x
  2. Step 2: Convert to fraction form
    236,742/326,690.64 = 134,792.34/x
  3. Step 3: Cross multiply
    236,742x = 326,690.64 × 134,792.34
  4. Step 4: Simplify right side
    236,742x = 44,035,395,821.70
  5. Step 5: Solve for x
    x = 44,035,395,821.70/236,742
  6. Step 6: Final answer
    x = 186,005.85

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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.