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Finding the Fourth Proportional to 358,081.40, 536,474.10 and 170,679.80

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Solution

The fourth proportional to 358,081.40, 536,474.10 and 170,679.80 is: 255,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,081.40 : 536,474.10 = 170,679.80 : x
  2. Step 2: Convert to fraction form
    358,081.40/536,474.10 = 170,679.80/x
  3. Step 3: Cross multiply
    358,081.40x = 536,474.10 × 170,679.80
  4. Step 4: Simplify right side
    358,081.40x = 91,565,292,093.18
  5. Step 5: Solve for x
    x = 91,565,292,093.18/358,081.40
  6. Step 6: Final answer
    x = 255,710.83

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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.