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Finding the Fourth Proportional to 358,116.63, 494,210.29 and 196,975.90

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Solution

The fourth proportional to 358,116.63, 494,210.29 and 196,975.90 is: 271,831.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,116.63 : 494,210.29 = 196,975.90 : x
  2. Step 2: Convert to fraction form
    358,116.63/494,210.29 = 196,975.90/x
  3. Step 3: Cross multiply
    358,116.63x = 494,210.29 × 196,975.90
  4. Step 4: Simplify right side
    358,116.63x = 97,347,516,662.01
  5. Step 5: Solve for x
    x = 97,347,516,662.01/358,116.63
  6. Step 6: Final answer
    x = 271,831.88

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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.