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Finding the Fourth Proportional to 249,992.25, 375,027.50 and 81,473.43

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Solution

The fourth proportional to 249,992.25, 375,027.50 and 81,473.43 is: 122,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,992.25 : 375,027.50 = 81,473.43 : x
  2. Step 2: Convert to fraction form
    249,992.25/375,027.50 = 81,473.43/x
  3. Step 3: Cross multiply
    249,992.25x = 375,027.50 × 81,473.43
  4. Step 4: Simplify right side
    249,992.25x = 30,554,776,361.96
  5. Step 5: Solve for x
    x = 30,554,776,361.96/249,992.25
  6. Step 6: Final answer
    x = 122,222.89

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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.