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Finding the Fourth Proportional to 100,528.94, 150,798.60 and 25,649.74

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Solution

The fourth proportional to 100,528.94, 150,798.60 and 25,649.74 is: 38,475.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,528.94 : 150,798.60 = 25,649.74 : x
  2. Step 2: Convert to fraction form
    100,528.94/150,798.60 = 25,649.74/x
  3. Step 3: Cross multiply
    100,528.94x = 150,798.60 × 25,649.74
  4. Step 4: Simplify right side
    100,528.94x = 3,867,944,882.36
  5. Step 5: Solve for x
    x = 3,867,944,882.36/100,528.94
  6. Step 6: Final answer
    x = 38,475.93

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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.