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Finding the Fourth Proportional to 140,104.94, 193,344.80 and 89,803.94

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Solution

The fourth proportional to 140,104.94, 193,344.80 and 89,803.94 is: 123,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,104.94 : 193,344.80 = 89,803.94 : x
  2. Step 2: Convert to fraction form
    140,104.94/193,344.80 = 89,803.94/x
  3. Step 3: Cross multiply
    140,104.94x = 193,344.80 × 89,803.94
  4. Step 4: Simplify right side
    140,104.94x = 17,363,124,818.51
  5. Step 5: Solve for x
    x = 17,363,124,818.51/140,104.94
  6. Step 6: Final answer
    x = 123,929.43

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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.