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Finding the Fourth Proportional to 73,798.09, 110,643.77 and 28,781.29

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Solution

The fourth proportional to 73,798.09, 110,643.77 and 28,781.29 is: 43,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,798.09 : 110,643.77 = 28,781.29 : x
  2. Step 2: Convert to fraction form
    73,798.09/110,643.77 = 28,781.29/x
  3. Step 3: Cross multiply
    73,798.09x = 110,643.77 × 28,781.29
  4. Step 4: Simplify right side
    73,798.09x = 3,184,470,641.32
  5. Step 5: Solve for x
    x = 3,184,470,641.32/73,798.09
  6. Step 6: Final answer
    x = 43,151.13

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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.