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Finding the Fourth Proportional to 72,324.32, 108,485.46 and 70,537.46

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Solution

The fourth proportional to 72,324.32, 108,485.46 and 70,537.46 is: 105,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,324.32 : 108,485.46 = 70,537.46 : x
  2. Step 2: Convert to fraction form
    72,324.32/108,485.46 = 70,537.46/x
  3. Step 3: Cross multiply
    72,324.32x = 108,485.46 × 70,537.46
  4. Step 4: Simplify right side
    72,324.32x = 7,652,288,252.90
  5. Step 5: Solve for x
    x = 7,652,288,252.90/72,324.32
  6. Step 6: Final answer
    x = 105,805.20

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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.