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Finding the Fourth Proportional to 102,649.20, 153,858.60 and 58,297.20

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Solution

The fourth proportional to 102,649.20, 153,858.60 and 58,297.20 is: 87,380.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,649.20 : 153,858.60 = 58,297.20 : x
  2. Step 2: Convert to fraction form
    102,649.20/153,858.60 = 58,297.20/x
  3. Step 3: Cross multiply
    102,649.20x = 153,858.60 × 58,297.20
  4. Step 4: Simplify right side
    102,649.20x = 8,969,525,575.92
  5. Step 5: Solve for x
    x = 8,969,525,575.92/102,649.20
  6. Step 6: Final answer
    x = 87,380.37

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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.