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Finding the Fourth Proportional to 342,886.50, 473,188.26 and 197,689.41

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Solution

The fourth proportional to 342,886.50, 473,188.26 and 197,689.41 is: 272,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,886.50 : 473,188.26 = 197,689.41 : x
  2. Step 2: Convert to fraction form
    342,886.50/473,188.26 = 197,689.41/x
  3. Step 3: Cross multiply
    342,886.50x = 473,188.26 × 197,689.41
  4. Step 4: Simplify right side
    342,886.50x = 93,544,307,938.33
  5. Step 5: Solve for x
    x = 93,544,307,938.33/342,886.50
  6. Step 6: Final answer
    x = 272,814.21

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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.