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Finding the Fourth Proportional to 392,347.83, 588,527.21 and 111,865.08

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Solution

The fourth proportional to 392,347.83, 588,527.21 and 111,865.08 is: 167,799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,347.83 : 588,527.21 = 111,865.08 : x
  2. Step 2: Convert to fraction form
    392,347.83/588,527.21 = 111,865.08/x
  3. Step 3: Cross multiply
    392,347.83x = 588,527.21 × 111,865.08
  4. Step 4: Simplify right side
    392,347.83x = 65,835,643,428.83
  5. Step 5: Solve for x
    x = 65,835,643,428.83/392,347.83
  6. Step 6: Final answer
    x = 167,799.18

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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.