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Finding the Fourth Proportional to 110,356.43, 152,290.44 and 65,036.32

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Solution

The fourth proportional to 110,356.43, 152,290.44 and 65,036.32 is: 89,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,356.43 : 152,290.44 = 65,036.32 : x
  2. Step 2: Convert to fraction form
    110,356.43/152,290.44 = 65,036.32/x
  3. Step 3: Cross multiply
    110,356.43x = 152,290.44 × 65,036.32
  4. Step 4: Simplify right side
    110,356.43x = 9,904,409,408.05
  5. Step 5: Solve for x
    x = 9,904,409,408.05/110,356.43
  6. Step 6: Final answer
    x = 89,749.28

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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.