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Finding the Fourth Proportional to 185,930.69, 256,496.71 and 134,831.32

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Solution

The fourth proportional to 185,930.69, 256,496.71 and 134,831.32 is: 186,003.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,930.69 : 256,496.71 = 134,831.32 : x
  2. Step 2: Convert to fraction form
    185,930.69/256,496.71 = 134,831.32/x
  3. Step 3: Cross multiply
    185,930.69x = 256,496.71 × 134,831.32
  4. Step 4: Simplify right side
    185,930.69x = 34,583,790,910.36
  5. Step 5: Solve for x
    x = 34,583,790,910.36/185,930.69
  6. Step 6: Final answer
    x = 186,003.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.