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Finding the Fourth Proportional to 177,785.01, 266,677.77 and 72,603.98

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Solution

The fourth proportional to 177,785.01, 266,677.77 and 72,603.98 is: 108,906.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,785.01 : 266,677.77 = 72,603.98 : x
  2. Step 2: Convert to fraction form
    177,785.01/266,677.77 = 72,603.98/x
  3. Step 3: Cross multiply
    177,785.01x = 266,677.77 × 72,603.98
  4. Step 4: Simplify right side
    177,785.01x = 19,361,867,479.52
  5. Step 5: Solve for x
    x = 19,361,867,479.52/177,785.01
  6. Step 6: Final answer
    x = 108,906.08

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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.