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Finding the Fourth Proportional to 155,672.17, 214,832.87 and 92,064.49

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Solution

The fourth proportional to 155,672.17, 214,832.87 and 92,064.49 is: 127,052.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,672.17 : 214,832.87 = 92,064.49 : x
  2. Step 2: Convert to fraction form
    155,672.17/214,832.87 = 92,064.49/x
  3. Step 3: Cross multiply
    155,672.17x = 214,832.87 × 92,064.49
  4. Step 4: Simplify right side
    155,672.17x = 19,778,478,151.46
  5. Step 5: Solve for x
    x = 19,778,478,151.46/155,672.17
  6. Step 6: Final answer
    x = 127,052.11

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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.