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Finding the Fourth Proportional to 342,923.28, 473,223.42 and 189,955.32

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Solution

The fourth proportional to 342,923.28, 473,223.42 and 189,955.32 is: 262,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,923.28 : 473,223.42 = 189,955.32 : x
  2. Step 2: Convert to fraction form
    342,923.28/473,223.42 = 189,955.32/x
  3. Step 3: Cross multiply
    342,923.28x = 473,223.42 × 189,955.32
  4. Step 4: Simplify right side
    342,923.28x = 89,891,306,177.59
  5. Step 5: Solve for x
    x = 89,891,306,177.59/342,923.28
  6. Step 6: Final answer
    x = 262,132.41

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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.