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Finding the Fourth Proportional to 104,101.76, 143,660.89 and 56,355.11

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Solution

The fourth proportional to 104,101.76, 143,660.89 and 56,355.11 is: 77,770.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,101.76 : 143,660.89 = 56,355.11 : x
  2. Step 2: Convert to fraction form
    104,101.76/143,660.89 = 56,355.11/x
  3. Step 3: Cross multiply
    104,101.76x = 143,660.89 × 56,355.11
  4. Step 4: Simplify right side
    104,101.76x = 8,096,024,540.34
  5. Step 5: Solve for x
    x = 8,096,024,540.34/104,101.76
  6. Step 6: Final answer
    x = 77,770.29

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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.