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Finding the Fourth Proportional to 301,993.52, 452,987.54 and 91,631.45

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Solution

The fourth proportional to 301,993.52, 452,987.54 and 91,631.45 is: 137,446.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,993.52 : 452,987.54 = 91,631.45 : x
  2. Step 2: Convert to fraction form
    301,993.52/452,987.54 = 91,631.45/x
  3. Step 3: Cross multiply
    301,993.52x = 452,987.54 × 91,631.45
  4. Step 4: Simplify right side
    301,993.52x = 41,507,906,140.06
  5. Step 5: Solve for x
    x = 41,507,906,140.06/301,993.52
  6. Step 6: Final answer
    x = 137,446.35

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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.