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Finding the Fourth Proportional to 108,764.70, 150,061.64 and 63,410.59

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Solution

The fourth proportional to 108,764.70, 150,061.64 and 63,410.59 is: 87,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,764.70 : 150,061.64 = 63,410.59 : x
  2. Step 2: Convert to fraction form
    108,764.70/150,061.64 = 63,410.59/x
  3. Step 3: Cross multiply
    108,764.70x = 150,061.64 × 63,410.59
  4. Step 4: Simplify right side
    108,764.70x = 9,515,497,534.32
  5. Step 5: Solve for x
    x = 9,515,497,534.32/108,764.70
  6. Step 6: Final answer
    x = 87,487.00

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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.