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Finding the Fourth Proportional to 100,607.30, 150,931.20 and 29,529.80

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Solution

The fourth proportional to 100,607.30, 150,931.20 and 29,529.80 is: 44,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,607.30 : 150,931.20 = 29,529.80 : x
  2. Step 2: Convert to fraction form
    100,607.30/150,931.20 = 29,529.80/x
  3. Step 3: Cross multiply
    100,607.30x = 150,931.20 × 29,529.80
  4. Step 4: Simplify right side
    100,607.30x = 4,456,968,149.76
  5. Step 5: Solve for x
    x = 4,456,968,149.76/100,607.30
  6. Step 6: Final answer
    x = 44,300.64

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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.