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Finding the Fourth Proportional to 100,390.30, 150,530.44 and 46,296.26

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Solution

The fourth proportional to 100,390.30, 150,530.44 and 46,296.26 is: 69,419.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,390.30 : 150,530.44 = 46,296.26 : x
  2. Step 2: Convert to fraction form
    100,390.30/150,530.44 = 46,296.26/x
  3. Step 3: Cross multiply
    100,390.30x = 150,530.44 × 46,296.26
  4. Step 4: Simplify right side
    100,390.30x = 6,968,996,388.15
  5. Step 5: Solve for x
    x = 6,968,996,388.15/100,390.30
  6. Step 6: Final answer
    x = 69,419.02

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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.