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Finding the Fourth Proportional to 440,888.27, 661,436.28 and 125,347.91

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Solution

The fourth proportional to 440,888.27, 661,436.28 and 125,347.91 is: 188,051.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,888.27 : 661,436.28 = 125,347.91 : x
  2. Step 2: Convert to fraction form
    440,888.27/661,436.28 = 125,347.91/x
  3. Step 3: Cross multiply
    440,888.27x = 661,436.28 × 125,347.91
  4. Step 4: Simplify right side
    440,888.27x = 82,909,651,988.99
  5. Step 5: Solve for x
    x = 82,909,651,988.99/440,888.27
  6. Step 6: Final answer
    x = 188,051.39

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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.