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Finding the Fourth Proportional to 162,918.68, 224,830.50 and 91,314.68

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Solution

The fourth proportional to 162,918.68, 224,830.50 and 91,314.68 is: 126,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,918.68 : 224,830.50 = 91,314.68 : x
  2. Step 2: Convert to fraction form
    162,918.68/224,830.50 = 91,314.68/x
  3. Step 3: Cross multiply
    162,918.68x = 224,830.50 × 91,314.68
  4. Step 4: Simplify right side
    162,918.68x = 20,530,325,161.74
  5. Step 5: Solve for x
    x = 20,530,325,161.74/162,918.68
  6. Step 6: Final answer
    x = 126,015.78

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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.