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Finding the Fourth Proportional to 333,969.76, 500,954.28 and 81,248.68

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Solution

The fourth proportional to 333,969.76, 500,954.28 and 81,248.68 is: 121,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,969.76 : 500,954.28 = 81,248.68 : x
  2. Step 2: Convert to fraction form
    333,969.76/500,954.28 = 81,248.68/x
  3. Step 3: Cross multiply
    333,969.76x = 500,954.28 × 81,248.68
  4. Step 4: Simplify right side
    333,969.76x = 40,701,873,990.35
  5. Step 5: Solve for x
    x = 40,701,873,990.35/333,969.76
  6. Step 6: Final answer
    x = 121,872.93

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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.