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Finding the Fourth Proportional to 139,322.96, 192,324.55 and 94,062.25

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Solution

The fourth proportional to 139,322.96, 192,324.55 and 94,062.25 is: 129,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,322.96 : 192,324.55 = 94,062.25 : x
  2. Step 2: Convert to fraction form
    139,322.96/192,324.55 = 94,062.25/x
  3. Step 3: Cross multiply
    139,322.96x = 192,324.55 × 94,062.25
  4. Step 4: Simplify right side
    139,322.96x = 18,090,479,903.24
  5. Step 5: Solve for x
    x = 18,090,479,903.24/139,322.96
  6. Step 6: Final answer
    x = 129,845.65

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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.