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Finding the Fourth Proportional to 139,024.92, 191,854.26 and 75,362.16

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Solution

The fourth proportional to 139,024.92, 191,854.26 and 75,362.16 is: 103,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,024.92 : 191,854.26 = 75,362.16 : x
  2. Step 2: Convert to fraction form
    139,024.92/191,854.26 = 75,362.16/x
  3. Step 3: Cross multiply
    139,024.92x = 191,854.26 × 75,362.16
  4. Step 4: Simplify right side
    139,024.92x = 14,458,551,438.80
  5. Step 5: Solve for x
    x = 14,458,551,438.80/139,024.92
  6. Step 6: Final answer
    x = 103,999.71

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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.