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Finding the Fourth Proportional to 139,294.44, 192,230.22 and 75,636.12

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Solution

The fourth proportional to 139,294.44, 192,230.22 and 75,636.12 is: 104,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,294.44 : 192,230.22 = 75,636.12 : x
  2. Step 2: Convert to fraction form
    139,294.44/192,230.22 = 75,636.12/x
  3. Step 3: Cross multiply
    139,294.44x = 192,230.22 × 75,636.12
  4. Step 4: Simplify right side
    139,294.44x = 14,539,547,987.55
  5. Step 5: Solve for x
    x = 14,539,547,987.55/139,294.44
  6. Step 6: Final answer
    x = 104,379.96

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1.5x scale

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.