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Finding the Fourth Proportional to 136,894.69, 205,343.25 and 48,148.89

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Solution

The fourth proportional to 136,894.69, 205,343.25 and 48,148.89 is: 72,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,894.69 : 205,343.25 = 48,148.89 : x
  2. Step 2: Convert to fraction form
    136,894.69/205,343.25 = 48,148.89/x
  3. Step 3: Cross multiply
    136,894.69x = 205,343.25 × 48,148.89
  4. Step 4: Simplify right side
    136,894.69x = 9,887,049,556.49
  5. Step 5: Solve for x
    x = 9,887,049,556.49/136,894.69
  6. Step 6: Final answer
    x = 72,223.76

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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.