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Finding the Fourth Proportional to 173,209.70, 259,814.55 and 79,897.70

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Solution

The fourth proportional to 173,209.70, 259,814.55 and 79,897.70 is: 119,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,209.70 : 259,814.55 = 79,897.70 : x
  2. Step 2: Convert to fraction form
    173,209.70/259,814.55 = 79,897.70/x
  3. Step 3: Cross multiply
    173,209.70x = 259,814.55 × 79,897.70
  4. Step 4: Simplify right side
    173,209.70x = 20,758,584,971.54
  5. Step 5: Solve for x
    x = 20,758,584,971.54/173,209.70
  6. Step 6: Final answer
    x = 119,846.55

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1.5x scale

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.