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Finding the Fourth Proportional to 101,541.12, 152,410.08 and 48,987.54

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Solution

The fourth proportional to 101,541.12, 152,410.08 and 48,987.54 is: 73,528.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,541.12 : 152,410.08 = 48,987.54 : x
  2. Step 2: Convert to fraction form
    101,541.12/152,410.08 = 48,987.54/x
  3. Step 3: Cross multiply
    101,541.12x = 152,410.08 × 48,987.54
  4. Step 4: Simplify right side
    101,541.12x = 7,466,194,890.40
  5. Step 5: Solve for x
    x = 7,466,194,890.40/101,541.12
  6. Step 6: Final answer
    x = 73,528.78

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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.