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Finding the Fourth Proportional to 236,175.60, 354,186.32 and 78,361.68

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Solution

The fourth proportional to 236,175.60, 354,186.32 and 78,361.68 is: 117,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,175.60 : 354,186.32 = 78,361.68 : x
  2. Step 2: Convert to fraction form
    236,175.60/354,186.32 = 78,361.68/x
  3. Step 3: Cross multiply
    236,175.60x = 354,186.32 × 78,361.68
  4. Step 4: Simplify right side
    236,175.60x = 27,754,635,068.22
  5. Step 5: Solve for x
    x = 27,754,635,068.22/236,175.60
  6. Step 6: Final answer
    x = 117,516.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.