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Finding the Fourth Proportional to 340,658.01, 470,144.82 and 187,711.58

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Solution

The fourth proportional to 340,658.01, 470,144.82 and 187,711.58 is: 259,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,658.01 : 470,144.82 = 187,711.58 : x
  2. Step 2: Convert to fraction form
    340,658.01/470,144.82 = 187,711.58/x
  3. Step 3: Cross multiply
    340,658.01x = 470,144.82 × 187,711.58
  4. Step 4: Simplify right side
    340,658.01x = 88,251,628,870.30
  5. Step 5: Solve for x
    x = 88,251,628,870.30/340,658.01
  6. Step 6: Final answer
    x = 259,062.25

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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.