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Finding the Fourth Proportional to 208,670.80, 313,006.20 and 60,926.80

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Solution

The fourth proportional to 208,670.80, 313,006.20 and 60,926.80 is: 91,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,670.80 : 313,006.20 = 60,926.80 : x
  2. Step 2: Convert to fraction form
    208,670.80/313,006.20 = 60,926.80/x
  3. Step 3: Cross multiply
    208,670.80x = 313,006.20 × 60,926.80
  4. Step 4: Simplify right side
    208,670.80x = 19,070,466,146.16
  5. Step 5: Solve for x
    x = 19,070,466,146.16/208,670.80
  6. Step 6: Final answer
    x = 91,390.20

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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.