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Finding the Fourth Proportional to 359,121.25, 495,588.81 and 197,972.74

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Solution

The fourth proportional to 359,121.25, 495,588.81 and 197,972.74 is: 273,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,121.25 : 495,588.81 = 197,972.74 : x
  2. Step 2: Convert to fraction form
    359,121.25/495,588.81 = 197,972.74/x
  3. Step 3: Cross multiply
    359,121.25x = 495,588.81 × 197,972.74
  4. Step 4: Simplify right side
    359,121.25x = 98,113,074,629.04
  5. Step 5: Solve for x
    x = 98,113,074,629.04/359,121.25
  6. Step 6: Final answer
    x = 273,203.20

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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.