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Finding the Fourth Proportional to 472,607.30, 709,016.70 and 173,081.90

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Solution

The fourth proportional to 472,607.30, 709,016.70 and 173,081.90 is: 259,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,607.30 : 709,016.70 = 173,081.90 : x
  2. Step 2: Convert to fraction form
    472,607.30/709,016.70 = 173,081.90/x
  3. Step 3: Cross multiply
    472,607.30x = 709,016.70 × 173,081.90
  4. Step 4: Simplify right side
    472,607.30x = 122,717,957,567.73
  5. Step 5: Solve for x
    x = 122,717,957,567.73/472,607.30
  6. Step 6: Final answer
    x = 259,661.58

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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.