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Finding the Fourth Proportional to 162,771.99, 224,546.10 and 105,394.83

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Solution

The fourth proportional to 162,771.99, 224,546.10 and 105,394.83 is: 145,393.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,771.99 : 224,546.10 = 105,394.83 : x
  2. Step 2: Convert to fraction form
    162,771.99/224,546.10 = 105,394.83/x
  3. Step 3: Cross multiply
    162,771.99x = 224,546.10 × 105,394.83
  4. Step 4: Simplify right side
    162,771.99x = 23,665,998,036.66
  5. Step 5: Solve for x
    x = 23,665,998,036.66/162,771.99
  6. Step 6: Final answer
    x = 145,393.55

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1.5x scale

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.