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Finding the Fourth Proportional to 342,955.48, 473,273.45 and 189,993.35

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Solution

The fourth proportional to 342,955.48, 473,273.45 and 189,993.35 is: 262,187.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,955.48 : 473,273.45 = 189,993.35 : x
  2. Step 2: Convert to fraction form
    342,955.48/473,273.45 = 189,993.35/x
  3. Step 3: Cross multiply
    342,955.48x = 473,273.45 × 189,993.35
  4. Step 4: Simplify right side
    342,955.48x = 89,918,808,231.56
  5. Step 5: Solve for x
    x = 89,918,808,231.56/342,955.48
  6. Step 6: Final answer
    x = 262,187.99

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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.