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Finding the Fourth Proportional to 100,441.76, 150,479.04 and 47,035.76

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Solution

The fourth proportional to 100,441.76, 150,479.04 and 47,035.76 is: 70,467.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,441.76 : 150,479.04 = 47,035.76 : x
  2. Step 2: Convert to fraction form
    100,441.76/150,479.04 = 47,035.76/x
  3. Step 3: Cross multiply
    100,441.76x = 150,479.04 × 47,035.76
  4. Step 4: Simplify right side
    100,441.76x = 7,077,896,010.47
  5. Step 5: Solve for x
    x = 7,077,896,010.47/100,441.76
  6. Step 6: Final answer
    x = 70,467.66

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1.5x scale

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.