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Finding the Fourth Proportional to 139,210.92, 208,831.14 and 44,448.84

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Solution

The fourth proportional to 139,210.92, 208,831.14 and 44,448.84 is: 66,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,210.92 : 208,831.14 = 44,448.84 : x
  2. Step 2: Convert to fraction form
    139,210.92/208,831.14 = 44,448.84/x
  3. Step 3: Cross multiply
    139,210.92x = 208,831.14 × 44,448.84
  4. Step 4: Simplify right side
    139,210.92x = 9,282,301,928.88
  5. Step 5: Solve for x
    x = 9,282,301,928.88/139,210.92
  6. Step 6: Final answer
    x = 66,677.97

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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.