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Finding the Fourth Proportional to 104,557.53, 144,287.31 and 56,811.22

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Solution

The fourth proportional to 104,557.53, 144,287.31 and 56,811.22 is: 78,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,557.53 : 144,287.31 = 56,811.22 : x
  2. Step 2: Convert to fraction form
    104,557.53/144,287.31 = 56,811.22/x
  3. Step 3: Cross multiply
    104,557.53x = 144,287.31 × 56,811.22
  4. Step 4: Simplify right side
    104,557.53x = 8,197,138,505.02
  5. Step 5: Solve for x
    x = 8,197,138,505.02/104,557.53
  6. Step 6: Final answer
    x = 78,398.36

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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.