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Finding the Fourth Proportional to 236,553.36, 354,698.76 and 78,695.64

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Solution

The fourth proportional to 236,553.36, 354,698.76 and 78,695.64 is: 117,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,553.36 : 354,698.76 = 78,695.64 : x
  2. Step 2: Convert to fraction form
    236,553.36/354,698.76 = 78,695.64/x
  3. Step 3: Cross multiply
    236,553.36x = 354,698.76 × 78,695.64
  4. Step 4: Simplify right side
    236,553.36x = 27,913,245,925.41
  5. Step 5: Solve for x
    x = 27,913,245,925.41/236,553.36
  6. Step 6: Final answer
    x = 117,999.79

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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.