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Finding the Fourth Proportional to 272,713.64, 409,089.08 and 92,725.79

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Solution

The fourth proportional to 272,713.64, 409,089.08 and 92,725.79 is: 139,095.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,713.64 : 409,089.08 = 92,725.79 : x
  2. Step 2: Convert to fraction form
    272,713.64/409,089.08 = 92,725.79/x
  3. Step 3: Cross multiply
    272,713.64x = 409,089.08 × 92,725.79
  4. Step 4: Simplify right side
    272,713.64x = 37,933,106,309.74
  5. Step 5: Solve for x
    x = 37,933,106,309.74/272,713.64
  6. Step 6: Final answer
    x = 139,095.01

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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.