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Finding the Fourth Proportional to 139,366.38, 192,324.68 and 75,703.62

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Solution

The fourth proportional to 139,366.38, 192,324.68 and 75,703.62 is: 104,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,366.38 : 192,324.68 = 75,703.62 : x
  2. Step 2: Convert to fraction form
    139,366.38/192,324.68 = 75,703.62/x
  3. Step 3: Cross multiply
    139,366.38x = 192,324.68 × 75,703.62
  4. Step 4: Simplify right side
    139,366.38x = 14,559,674,491.34
  5. Step 5: Solve for x
    x = 14,559,674,491.34/139,366.38
  6. Step 6: Final answer
    x = 104,470.49

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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.