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Finding the Fourth Proportional to 169,792.74, 234,209.74 and 100,835.36

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Solution

The fourth proportional to 169,792.74, 234,209.74 and 100,835.36 is: 139,090.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,792.74 : 234,209.74 = 100,835.36 : x
  2. Step 2: Convert to fraction form
    169,792.74/234,209.74 = 100,835.36/x
  3. Step 3: Cross multiply
    169,792.74x = 234,209.74 × 100,835.36
  4. Step 4: Simplify right side
    169,792.74x = 23,616,623,448.41
  5. Step 5: Solve for x
    x = 23,616,623,448.41/169,792.74
  6. Step 6: Final answer
    x = 139,090.89

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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.