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Finding the Fourth Proportional to 108,796.64, 150,019.44 and 75,204.32

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Solution

The fourth proportional to 108,796.64, 150,019.44 and 75,204.32 is: 103,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,796.64 : 150,019.44 = 75,204.32 : x
  2. Step 2: Convert to fraction form
    108,796.64/150,019.44 = 75,204.32/x
  3. Step 3: Cross multiply
    108,796.64x = 150,019.44 × 75,204.32
  4. Step 4: Simplify right side
    108,796.64x = 11,282,109,971.98
  5. Step 5: Solve for x
    x = 11,282,109,971.98/108,796.64
  6. Step 6: Final answer
    x = 103,699.07

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1.5x scale

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.