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Finding the Fourth Proportional to 173,373.40, 259,887.30 and 79,715.80

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Solution

The fourth proportional to 173,373.40, 259,887.30 and 79,715.80 is: 119,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,373.40 : 259,887.30 = 79,715.80 : x
  2. Step 2: Convert to fraction form
    173,373.40/259,887.30 = 79,715.80/x
  3. Step 3: Cross multiply
    173,373.40x = 259,887.30 × 79,715.80
  4. Step 4: Simplify right side
    173,373.40x = 20,717,124,029.34
  5. Step 5: Solve for x
    x = 20,717,124,029.34/173,373.40
  6. Step 6: Final answer
    x = 119,494.25

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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.