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Finding the Fourth Proportional to 155,672.42, 214,833.22 and 92,064.74

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Solution

The fourth proportional to 155,672.42, 214,833.22 and 92,064.74 is: 127,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,672.42 : 214,833.22 = 92,064.74 : x
  2. Step 2: Convert to fraction form
    155,672.42/214,833.22 = 92,064.74/x
  3. Step 3: Cross multiply
    155,672.42x = 214,833.22 × 92,064.74
  4. Step 4: Simplify right side
    155,672.42x = 19,778,564,542.66
  5. Step 5: Solve for x
    x = 19,778,564,542.66/155,672.42
  6. Step 6: Final answer
    x = 127,052.46

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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.