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Finding the Fourth Proportional to 331,598.40, 497,427.68 and 91,727.33

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Solution

The fourth proportional to 331,598.40, 497,427.68 and 91,727.33 is: 137,599.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,598.40 : 497,427.68 = 91,727.33 : x
  2. Step 2: Convert to fraction form
    331,598.40/497,427.68 = 91,727.33/x
  3. Step 3: Cross multiply
    331,598.40x = 497,427.68 × 91,727.33
  4. Step 4: Simplify right side
    331,598.40x = 45,627,712,495.86
  5. Step 5: Solve for x
    x = 45,627,712,495.86/331,598.40
  6. Step 6: Final answer
    x = 137,599.31

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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.