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Finding the Fourth Proportional to 103,224.51, 154,837.04 and 28,345.68

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Solution

The fourth proportional to 103,224.51, 154,837.04 and 28,345.68 is: 42,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,224.51 : 154,837.04 = 28,345.68 : x
  2. Step 2: Convert to fraction form
    103,224.51/154,837.04 = 28,345.68/x
  3. Step 3: Cross multiply
    103,224.51x = 154,837.04 × 28,345.68
  4. Step 4: Simplify right side
    103,224.51x = 4,388,961,046.26
  5. Step 5: Solve for x
    x = 4,388,961,046.26/103,224.51
  6. Step 6: Final answer
    x = 42,518.59

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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.