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Finding the Fourth Proportional to 125,741.58, 173,514.66 and 74,751.67

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Solution

The fourth proportional to 125,741.58, 173,514.66 and 74,751.67 is: 103,152.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,741.58 : 173,514.66 = 74,751.67 : x
  2. Step 2: Convert to fraction form
    125,741.58/173,514.66 = 74,751.67/x
  3. Step 3: Cross multiply
    125,741.58x = 173,514.66 × 74,751.67
  4. Step 4: Simplify right side
    125,741.58x = 12,970,510,604.48
  5. Step 5: Solve for x
    x = 12,970,510,604.48/125,741.58
  6. Step 6: Final answer
    x = 103,152.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.