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Finding the Fourth Proportional to 124,745.10, 187,235.10 and 65,623.20

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Solution

The fourth proportional to 124,745.10, 187,235.10 and 65,623.20 is: 98,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,745.10 : 187,235.10 = 65,623.20 : x
  2. Step 2: Convert to fraction form
    124,745.10/187,235.10 = 65,623.20/x
  3. Step 3: Cross multiply
    124,745.10x = 187,235.10 × 65,623.20
  4. Step 4: Simplify right side
    124,745.10x = 12,286,966,414.32
  5. Step 5: Solve for x
    x = 12,286,966,414.32/124,745.10
  6. Step 6: Final answer
    x = 98,496.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.