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Finding the Fourth Proportional to 78,924.48, 118,392.80 and 26,333.88

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Solution

The fourth proportional to 78,924.48, 118,392.80 and 26,333.88 is: 39,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,924.48 : 118,392.80 = 26,333.88 : x
  2. Step 2: Convert to fraction form
    78,924.48/118,392.80 = 26,333.88/x
  3. Step 3: Cross multiply
    78,924.48x = 118,392.80 × 26,333.88
  4. Step 4: Simplify right side
    78,924.48x = 3,117,741,656.39
  5. Step 5: Solve for x
    x = 3,117,741,656.39/78,924.48
  6. Step 6: Final answer
    x = 39,502.85

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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.