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Finding the Fourth Proportional to 440,888.96, 661,388.12 and 125,370.47

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Solution

The fourth proportional to 440,888.96, 661,388.12 and 125,370.47 is: 188,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,888.96 : 661,388.12 = 125,370.47 : x
  2. Step 2: Convert to fraction form
    440,888.96/661,388.12 = 125,370.47/x
  3. Step 3: Cross multiply
    440,888.96x = 661,388.12 × 125,370.47
  4. Step 4: Simplify right side
    440,888.96x = 82,918,535,523.02
  5. Step 5: Solve for x
    x = 82,918,535,523.02/440,888.96
  6. Step 6: Final answer
    x = 188,071.25

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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.