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Finding the Fourth Proportional to 88,485.10, 132,747.08 and 65,040.46

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Solution

The fourth proportional to 88,485.10, 132,747.08 and 65,040.46 is: 97,574.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,485.10 : 132,747.08 = 65,040.46 : x
  2. Step 2: Convert to fraction form
    88,485.10/132,747.08 = 65,040.46/x
  3. Step 3: Cross multiply
    88,485.10x = 132,747.08 × 65,040.46
  4. Step 4: Simplify right side
    88,485.10x = 8,633,931,146.86
  5. Step 5: Solve for x
    x = 8,633,931,146.86/88,485.10
  6. Step 6: Final answer
    x = 97,574.97

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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.