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Finding the Fourth Proportional to 139,197.51, 192,093.06 and 75,535.30

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Solution

The fourth proportional to 139,197.51, 192,093.06 and 75,535.30 is: 104,238.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,197.51 : 192,093.06 = 75,535.30 : x
  2. Step 2: Convert to fraction form
    139,197.51/192,093.06 = 75,535.30/x
  3. Step 3: Cross multiply
    139,197.51x = 192,093.06 × 75,535.30
  4. Step 4: Simplify right side
    139,197.51x = 14,509,806,915.02
  5. Step 5: Solve for x
    x = 14,509,806,915.02/139,197.51
  6. Step 6: Final answer
    x = 104,238.98

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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.