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Finding the Fourth Proportional to 342,910.61, 473,200.20 and 189,938.48

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Solution

The fourth proportional to 342,910.61, 473,200.20 and 189,938.48 is: 262,106.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,910.61 : 473,200.20 = 189,938.48 : x
  2. Step 2: Convert to fraction form
    342,910.61/473,200.20 = 189,938.48/x
  3. Step 3: Cross multiply
    342,910.61x = 473,200.20 × 189,938.48
  4. Step 4: Simplify right side
    342,910.61x = 89,878,926,723.70
  5. Step 5: Solve for x
    x = 89,878,926,723.70/342,910.61
  6. Step 6: Final answer
    x = 262,106.00

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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.