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Finding the Fourth Proportional to 342,673.74, 473,139.23 and 275,062.64

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Solution

The fourth proportional to 342,673.74, 473,139.23 and 275,062.64 is: 379,786.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,673.74 : 473,139.23 = 275,062.64 : x
  2. Step 2: Convert to fraction form
    342,673.74/473,139.23 = 275,062.64/x
  3. Step 3: Cross multiply
    342,673.74x = 473,139.23 × 275,062.64
  4. Step 4: Simplify right side
    342,673.74x = 130,142,921,950.36
  5. Step 5: Solve for x
    x = 130,142,921,950.36/342,673.74
  6. Step 6: Final answer
    x = 379,786.68

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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.