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Finding the Fourth Proportional to 359,111.08, 495,576.61 and 197,971.90

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Solution

The fourth proportional to 359,111.08, 495,576.61 and 197,971.90 is: 273,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,111.08 : 495,576.61 = 197,971.90 : x
  2. Step 2: Convert to fraction form
    359,111.08/495,576.61 = 197,971.90/x
  3. Step 3: Cross multiply
    359,111.08x = 495,576.61 × 197,971.90
  4. Step 4: Simplify right side
    359,111.08x = 98,110,241,725.15
  5. Step 5: Solve for x
    x = 98,110,241,725.15/359,111.08
  6. Step 6: Final answer
    x = 273,203.05

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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.