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Finding the Fourth Proportional to 162,732.88, 224,579.69 and 91,108.63

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Solution

The fourth proportional to 162,732.88, 224,579.69 and 91,108.63 is: 125,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,732.88 : 224,579.69 = 91,108.63 : x
  2. Step 2: Convert to fraction form
    162,732.88/224,579.69 = 91,108.63/x
  3. Step 3: Cross multiply
    162,732.88x = 224,579.69 × 91,108.63
  4. Step 4: Simplify right side
    162,732.88x = 20,461,147,881.72
  5. Step 5: Solve for x
    x = 20,461,147,881.72/162,732.88
  6. Step 6: Final answer
    x = 125,734.57

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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.