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Finding the Fourth Proportional to 314,735.46, 472,242.74 and 164,940.14

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Solution

The fourth proportional to 314,735.46, 472,242.74 and 164,940.14 is: 247,483.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,735.46 : 472,242.74 = 164,940.14 : x
  2. Step 2: Convert to fraction form
    314,735.46/472,242.74 = 164,940.14/x
  3. Step 3: Cross multiply
    314,735.46x = 472,242.74 × 164,940.14
  4. Step 4: Simplify right side
    314,735.46x = 77,891,783,649.58
  5. Step 5: Solve for x
    x = 77,891,783,649.58/314,735.46
  6. Step 6: Final answer
    x = 247,483.34

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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.