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Finding the Fourth Proportional to 103,602.44, 155,388.29 and 28,714.79

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Solution

The fourth proportional to 103,602.44, 155,388.29 and 28,714.79 is: 43,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,602.44 : 155,388.29 = 28,714.79 : x
  2. Step 2: Convert to fraction form
    103,602.44/155,388.29 = 28,714.79/x
  3. Step 3: Cross multiply
    103,602.44x = 155,388.29 × 28,714.79
  4. Step 4: Simplify right side
    103,602.44x = 4,461,942,360.71
  5. Step 5: Solve for x
    x = 4,461,942,360.71/103,602.44
  6. Step 6: Final answer
    x = 43,067.93

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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.