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Finding the Fourth Proportional to 139,207.54, 192,106.54 and 75,545.33

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Solution

The fourth proportional to 139,207.54, 192,106.54 and 75,545.33 is: 104,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,207.54 : 192,106.54 = 75,545.33 : x
  2. Step 2: Convert to fraction form
    139,207.54/192,106.54 = 75,545.33/x
  3. Step 3: Cross multiply
    139,207.54x = 192,106.54 × 75,545.33
  4. Step 4: Simplify right side
    139,207.54x = 14,512,751,959.46
  5. Step 5: Solve for x
    x = 14,512,751,959.46/139,207.54
  6. Step 6: Final answer
    x = 104,252.63

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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.