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Finding the Fourth Proportional to 236,510.39, 354,768.22 and 78,738.59

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Solution

The fourth proportional to 236,510.39, 354,768.22 and 78,738.59 is: 118,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,510.39 : 354,768.22 = 78,738.59 : x
  2. Step 2: Convert to fraction form
    236,510.39/354,768.22 = 78,738.59/x
  3. Step 3: Cross multiply
    236,510.39x = 354,768.22 × 78,738.59
  4. Step 4: Simplify right side
    236,510.39x = 27,933,949,419.61
  5. Step 5: Solve for x
    x = 27,933,949,419.61/236,510.39
  6. Step 6: Final answer
    x = 118,108.76

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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.