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Finding the Fourth Proportional to 132,924.98, 183,430 and 79,208.80

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Solution

The fourth proportional to 132,924.98, 183,430 and 79,208.80 is: 109,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,924.98 : 183,430 = 79,208.80 : x
  2. Step 2: Convert to fraction form
    132,924.98/183,430 = 79,208.80/x
  3. Step 3: Cross multiply
    132,924.98x = 183,430 × 79,208.80
  4. Step 4: Simplify right side
    132,924.98x = 14,529,270,184
  5. Step 5: Solve for x
    x = 14,529,270,184/132,924.98
  6. Step 6: Final answer
    x = 109,304.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.