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Finding the Fourth Proportional to 162,791.56, 224,670.90 and 99,166.60

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Solution

The fourth proportional to 162,791.56, 224,670.90 and 99,166.60 is: 136,861.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,791.56 : 224,670.90 = 99,166.60 : x
  2. Step 2: Convert to fraction form
    162,791.56/224,670.90 = 99,166.60/x
  3. Step 3: Cross multiply
    162,791.56x = 224,670.90 × 99,166.60
  4. Step 4: Simplify right side
    162,791.56x = 22,279,849,271.94
  5. Step 5: Solve for x
    x = 22,279,849,271.94/162,791.56
  6. Step 6: Final answer
    x = 136,861.21

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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.