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Finding the Fourth Proportional to 440,186.88, 660,308.48 and 124,668.80

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Solution

The fourth proportional to 440,186.88, 660,308.48 and 124,668.80 is: 187,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,186.88 : 660,308.48 = 124,668.80 : x
  2. Step 2: Convert to fraction form
    440,186.88/660,308.48 = 124,668.80/x
  3. Step 3: Cross multiply
    440,186.88x = 660,308.48 × 124,668.80
  4. Step 4: Simplify right side
    440,186.88x = 82,319,865,831.42
  5. Step 5: Solve for x
    x = 82,319,865,831.42/440,186.88
  6. Step 6: Final answer
    x = 187,011.18

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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.