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Finding the Fourth Proportional to 479,817.66, 719,727.35 and 124,831.11

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Solution

The fourth proportional to 479,817.66, 719,727.35 and 124,831.11 is: 187,246.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,817.66 : 719,727.35 = 124,831.11 : x
  2. Step 2: Convert to fraction form
    479,817.66/719,727.35 = 124,831.11/x
  3. Step 3: Cross multiply
    479,817.66x = 719,727.35 × 124,831.11
  4. Step 4: Simplify right side
    479,817.66x = 89,844,363,997.86
  5. Step 5: Solve for x
    x = 89,844,363,997.86/479,817.66
  6. Step 6: Final answer
    x = 187,246.89

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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.