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Finding the Fourth Proportional to 236,695.92, 355,047.03 and 78,924.45

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Solution

The fourth proportional to 236,695.92, 355,047.03 and 78,924.45 is: 118,387.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,695.92 : 355,047.03 = 78,924.45 : x
  2. Step 2: Convert to fraction form
    236,695.92/355,047.03 = 78,924.45/x
  3. Step 3: Cross multiply
    236,695.92x = 355,047.03 × 78,924.45
  4. Step 4: Simplify right side
    236,695.92x = 28,021,891,566.88
  5. Step 5: Solve for x
    x = 28,021,891,566.88/236,695.92
  6. Step 6: Final answer
    x = 118,387.73

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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.