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Finding the Fourth Proportional to 170,311.86, 235,048.86 and 93,838.82

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Solution

The fourth proportional to 170,311.86, 235,048.86 and 93,838.82 is: 129,507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,311.86 : 235,048.86 = 93,838.82 : x
  2. Step 2: Convert to fraction form
    170,311.86/235,048.86 = 93,838.82/x
  3. Step 3: Cross multiply
    170,311.86x = 235,048.86 × 93,838.82
  4. Step 4: Simplify right side
    170,311.86x = 22,056,706,489.50
  5. Step 5: Solve for x
    x = 22,056,706,489.50/170,311.86
  6. Step 6: Final answer
    x = 129,507.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.