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Finding the Fourth Proportional to 139,367.49, 192,385.99 and 94,106.76

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Solution

The fourth proportional to 139,367.49, 192,385.99 and 94,106.76 is: 129,907.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,367.49 : 192,385.99 = 94,106.76 : x
  2. Step 2: Convert to fraction form
    139,367.49/192,385.99 = 94,106.76/x
  3. Step 3: Cross multiply
    139,367.49x = 192,385.99 × 94,106.76
  4. Step 4: Simplify right side
    139,367.49x = 18,104,822,137.30
  5. Step 5: Solve for x
    x = 18,104,822,137.30/139,367.49
  6. Step 6: Final answer
    x = 129,907.07

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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.