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Finding the Fourth Proportional to 139,158.44, 192,038.72 and 75,496.22

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Solution

The fourth proportional to 139,158.44, 192,038.72 and 75,496.22 is: 104,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,158.44 : 192,038.72 = 75,496.22 : x
  2. Step 2: Convert to fraction form
    139,158.44/192,038.72 = 75,496.22/x
  3. Step 3: Cross multiply
    139,158.44x = 192,038.72 × 75,496.22
  4. Step 4: Simplify right side
    139,158.44x = 14,498,197,453.64
  5. Step 5: Solve for x
    x = 14,498,197,453.64/139,158.44
  6. Step 6: Final answer
    x = 104,184.82

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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.