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Finding the Fourth Proportional to 235,128.62, 324,477.42 and 127,698.68

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Solution

The fourth proportional to 235,128.62, 324,477.42 and 127,698.68 is: 176,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,128.62 : 324,477.42 = 127,698.68 : x
  2. Step 2: Convert to fraction form
    235,128.62/324,477.42 = 127,698.68/x
  3. Step 3: Cross multiply
    235,128.62x = 324,477.42 × 127,698.68
  4. Step 4: Simplify right side
    235,128.62x = 41,435,338,223.81
  5. Step 5: Solve for x
    x = 41,435,338,223.81/235,128.62
  6. Step 6: Final answer
    x = 176,224.14

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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.