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Finding the Fourth Proportional to 170,970.86, 256,530.09 and 92,069.37

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Solution

The fourth proportional to 170,970.86, 256,530.09 and 92,069.37 is: 138,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,970.86 : 256,530.09 = 92,069.37 : x
  2. Step 2: Convert to fraction form
    170,970.86/256,530.09 = 92,069.37/x
  3. Step 3: Cross multiply
    170,970.86x = 256,530.09 × 92,069.37
  4. Step 4: Simplify right side
    170,970.86x = 23,618,564,117.60
  5. Step 5: Solve for x
    x = 23,618,564,117.60/170,970.86
  6. Step 6: Final answer
    x = 138,143.80

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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.