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Finding the Fourth Proportional to 139,224.35, 192,130.17 and 75,562.22

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Solution

The fourth proportional to 139,224.35, 192,130.17 and 75,562.22 is: 104,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,224.35 : 192,130.17 = 75,562.22 : x
  2. Step 2: Convert to fraction form
    139,224.35/192,130.17 = 75,562.22/x
  3. Step 3: Cross multiply
    139,224.35x = 192,130.17 × 75,562.22
  4. Step 4: Simplify right side
    139,224.35x = 14,517,782,174.18
  5. Step 5: Solve for x
    x = 14,517,782,174.18/139,224.35
  6. Step 6: Final answer
    x = 104,276.17

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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.