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Finding the Fourth Proportional to 139,236.52, 192,303.12 and 94,100.94

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Solution

The fourth proportional to 139,236.52, 192,303.12 and 94,100.94 is: 129,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,236.52 : 192,303.12 = 94,100.94 : x
  2. Step 2: Convert to fraction form
    139,236.52/192,303.12 = 94,100.94/x
  3. Step 3: Cross multiply
    139,236.52x = 192,303.12 × 94,100.94
  4. Step 4: Simplify right side
    139,236.52x = 18,095,903,459.36
  5. Step 5: Solve for x
    x = 18,095,903,459.36/139,236.52
  6. Step 6: Final answer
    x = 129,965.21

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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.