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Finding the Fourth Proportional to 104,057.67, 143,599.58 and 56,311.02

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Solution

The fourth proportional to 104,057.67, 143,599.58 and 56,311.02 is: 77,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,057.67 : 143,599.58 = 56,311.02 : x
  2. Step 2: Convert to fraction form
    104,057.67/143,599.58 = 56,311.02/x
  3. Step 3: Cross multiply
    104,057.67x = 143,599.58 × 56,311.02
  4. Step 4: Simplify right side
    104,057.67x = 8,086,237,962.60
  5. Step 5: Solve for x
    x = 8,086,237,962.60/104,057.67
  6. Step 6: Final answer
    x = 77,709.20

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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.