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Finding the Fourth Proportional to 342,933.72, 473,266.32 and 189,988.68

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Solution

The fourth proportional to 342,933.72, 473,266.32 and 189,988.68 is: 262,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,933.72 : 473,266.32 = 189,988.68 : x
  2. Step 2: Convert to fraction form
    342,933.72/473,266.32 = 189,988.68/x
  3. Step 3: Cross multiply
    342,933.72x = 473,266.32 × 189,988.68
  4. Step 4: Simplify right side
    342,933.72x = 89,915,243,425.26
  5. Step 5: Solve for x
    x = 89,915,243,425.26/342,933.72
  6. Step 6: Final answer
    x = 262,194.23

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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.