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Finding the Fourth Proportional to 107,632.02, 161,448.04 and 28,742.08

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Solution

The fourth proportional to 107,632.02, 161,448.04 and 28,742.08 is: 43,113.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,632.02 : 161,448.04 = 28,742.08 : x
  2. Step 2: Convert to fraction form
    107,632.02/161,448.04 = 28,742.08/x
  3. Step 3: Cross multiply
    107,632.02x = 161,448.04 × 28,742.08
  4. Step 4: Simplify right side
    107,632.02x = 4,640,352,481.52
  5. Step 5: Solve for x
    x = 4,640,352,481.52/107,632.02
  6. Step 6: Final answer
    x = 43,113.12

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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.