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Finding the Fourth Proportional to 136,766.63, 205,239.69 and 48,017.86

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Solution

The fourth proportional to 136,766.63, 205,239.69 and 48,017.86 is: 72,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,766.63 : 205,239.69 = 48,017.86 : x
  2. Step 2: Convert to fraction form
    136,766.63/205,239.69 = 48,017.86/x
  3. Step 3: Cross multiply
    136,766.63x = 205,239.69 × 48,017.86
  4. Step 4: Simplify right side
    136,766.63x = 9,855,170,187.76
  5. Step 5: Solve for x
    x = 9,855,170,187.76/136,766.63
  6. Step 6: Final answer
    x = 72,058.29

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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.