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Finding the Fourth Proportional to 190,294, 261,906.60 and 163,131.52

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Solution

The fourth proportional to 190,294, 261,906.60 and 163,131.52 is: 224,522.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,294 : 261,906.60 = 163,131.52 : x
  2. Step 2: Convert to fraction form
    190,294/261,906.60 = 163,131.52/x
  3. Step 3: Cross multiply
    190,294x = 261,906.60 × 163,131.52
  4. Step 4: Simplify right side
    190,294x = 42,725,221,756.03
  5. Step 5: Solve for x
    x = 42,725,221,756.03/190,294
  6. Step 6: Final answer
    x = 224,522.17

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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.