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Finding the Fourth Proportional to 108,757.58, 150,090.42 and 63,428.36

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Solution

The fourth proportional to 108,757.58, 150,090.42 and 63,428.36 is: 87,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,757.58 : 150,090.42 = 63,428.36 : x
  2. Step 2: Convert to fraction form
    108,757.58/150,090.42 = 63,428.36/x
  3. Step 3: Cross multiply
    108,757.58x = 150,090.42 × 63,428.36
  4. Step 4: Simplify right side
    108,757.58x = 9,519,988,441.86
  5. Step 5: Solve for x
    x = 9,519,988,441.86/108,757.58
  6. Step 6: Final answer
    x = 87,534.03

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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.