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Finding the Fourth Proportional to 165,877.66, 248,865.09 and 53,555.77

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Solution

The fourth proportional to 165,877.66, 248,865.09 and 53,555.77 is: 80,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,877.66 : 248,865.09 = 53,555.77 : x
  2. Step 2: Convert to fraction form
    165,877.66/248,865.09 = 53,555.77/x
  3. Step 3: Cross multiply
    165,877.66x = 248,865.09 × 53,555.77
  4. Step 4: Simplify right side
    165,877.66x = 13,328,161,521.07
  5. Step 5: Solve for x
    x = 13,328,161,521.07/165,877.66
  6. Step 6: Final answer
    x = 80,349.35

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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.