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Finding the Fourth Proportional to 251,851.62, 377,686.68 and 83,340.84

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Solution

The fourth proportional to 251,851.62, 377,686.68 and 83,340.84 is: 124,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,851.62 : 377,686.68 = 83,340.84 : x
  2. Step 2: Convert to fraction form
    251,851.62/377,686.68 = 83,340.84/x
  3. Step 3: Cross multiply
    251,851.62x = 377,686.68 × 83,340.84
  4. Step 4: Simplify right side
    251,851.62x = 31,476,725,168.01
  5. Step 5: Solve for x
    x = 31,476,725,168.01/251,851.62
  6. Step 6: Final answer
    x = 124,981.23

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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.