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Finding the Fourth Proportional to 493,680.44, 740,546.04 and 138,722.13

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Solution

The fourth proportional to 493,680.44, 740,546.04 and 138,722.13 is: 208,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,680.44 : 740,546.04 = 138,722.13 : x
  2. Step 2: Convert to fraction form
    493,680.44/740,546.04 = 138,722.13/x
  3. Step 3: Cross multiply
    493,680.44x = 740,546.04 × 138,722.13
  4. Step 4: Simplify right side
    493,680.44x = 102,730,124,031.87
  5. Step 5: Solve for x
    x = 102,730,124,031.87/493,680.44
  6. Step 6: Final answer
    x = 208,090.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.