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Finding the Fourth Proportional to 104,103.82, 143,662.08 and 56,356.12

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Solution

The fourth proportional to 104,103.82, 143,662.08 and 56,356.12 is: 77,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,103.82 : 143,662.08 = 56,356.12 : x
  2. Step 2: Convert to fraction form
    104,103.82/143,662.08 = 56,356.12/x
  3. Step 3: Cross multiply
    104,103.82x = 143,662.08 × 56,356.12
  4. Step 4: Simplify right side
    104,103.82x = 8,096,237,419.93
  5. Step 5: Solve for x
    x = 8,096,237,419.93/104,103.82
  6. Step 6: Final answer
    x = 77,770.80

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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.