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Finding the Fourth Proportional to 293,465.25, 440,261.01 and 91,057.32

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Solution

The fourth proportional to 293,465.25, 440,261.01 and 91,057.32 is: 136,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,465.25 : 440,261.01 = 91,057.32 : x
  2. Step 2: Convert to fraction form
    293,465.25/440,261.01 = 91,057.32/x
  3. Step 3: Cross multiply
    293,465.25x = 440,261.01 × 91,057.32
  4. Step 4: Simplify right side
    293,465.25x = 40,088,987,671.09
  5. Step 5: Solve for x
    x = 40,088,987,671.09/293,465.25
  6. Step 6: Final answer
    x = 136,605.57

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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.