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Finding the Fourth Proportional to 342,931.80, 473,240.70 and 192,034.20

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Solution

The fourth proportional to 342,931.80, 473,240.70 and 192,034.20 is: 265,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,931.80 : 473,240.70 = 192,034.20 : x
  2. Step 2: Convert to fraction form
    342,931.80/473,240.70 = 192,034.20/x
  3. Step 3: Cross multiply
    342,931.80x = 473,240.70 × 192,034.20
  4. Step 4: Simplify right side
    342,931.80x = 90,878,399,231.94
  5. Step 5: Solve for x
    x = 90,878,399,231.94/342,931.80
  6. Step 6: Final answer
    x = 265,004.29

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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.