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Finding the Fourth Proportional to 173,117.70, 259,676.55 and 122,379.30

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Solution

The fourth proportional to 173,117.70, 259,676.55 and 122,379.30 is: 183,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,117.70 : 259,676.55 = 122,379.30 : x
  2. Step 2: Convert to fraction form
    173,117.70/259,676.55 = 122,379.30/x
  3. Step 3: Cross multiply
    173,117.70x = 259,676.55 × 122,379.30
  4. Step 4: Simplify right side
    173,117.70x = 31,779,034,415.42
  5. Step 5: Solve for x
    x = 31,779,034,415.42/173,117.70
  6. Step 6: Final answer
    x = 183,568.95

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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.