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Finding the Fourth Proportional to 108,745.72, 150,038.24 and 63,425.68

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Solution

The fourth proportional to 108,745.72, 150,038.24 and 63,425.68 is: 87,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,745.72 : 150,038.24 = 63,425.68 : x
  2. Step 2: Convert to fraction form
    108,745.72/150,038.24 = 63,425.68/x
  3. Step 3: Cross multiply
    108,745.72x = 150,038.24 × 63,425.68
  4. Step 4: Simplify right side
    108,745.72x = 9,516,277,398.00
  5. Step 5: Solve for x
    x = 9,516,277,398.00/108,745.72
  6. Step 6: Final answer
    x = 87,509.44

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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.