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Finding the Fourth Proportional to 125,806.22, 173,424.74 and 83,290.94

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Solution

The fourth proportional to 125,806.22, 173,424.74 and 83,290.94 is: 114,817.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,806.22 : 173,424.74 = 83,290.94 : x
  2. Step 2: Convert to fraction form
    125,806.22/173,424.74 = 83,290.94/x
  3. Step 3: Cross multiply
    125,806.22x = 173,424.74 × 83,290.94
  4. Step 4: Simplify right side
    125,806.22x = 14,444,709,613.86
  5. Step 5: Solve for x
    x = 14,444,709,613.86/125,806.22
  6. Step 6: Final answer
    x = 114,817.13

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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.