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Finding the Fourth Proportional to 101,149.92, 151,650 and 48,509.28

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Solution

The fourth proportional to 101,149.92, 151,650 and 48,509.28 is: 72,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,149.92 : 151,650 = 48,509.28 : x
  2. Step 2: Convert to fraction form
    101,149.92/151,650 = 48,509.28/x
  3. Step 3: Cross multiply
    101,149.92x = 151,650 × 48,509.28
  4. Step 4: Simplify right side
    101,149.92x = 7,356,432,312
  5. Step 5: Solve for x
    x = 7,356,432,312/101,149.92
  6. Step 6: Final answer
    x = 72,728.01

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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.