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Finding the Fourth Proportional to 342,932.48, 473,241.68 and 189,970.20

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Solution

The fourth proportional to 342,932.48, 473,241.68 and 189,970.20 is: 262,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,932.48 : 473,241.68 = 189,970.20 : x
  2. Step 2: Convert to fraction form
    342,932.48/473,241.68 = 189,970.20/x
  3. Step 3: Cross multiply
    342,932.48x = 473,241.68 × 189,970.20
  4. Step 4: Simplify right side
    342,932.48x = 89,901,816,597.94
  5. Step 5: Solve for x
    x = 89,901,816,597.94/342,932.48
  6. Step 6: Final answer
    x = 262,156.03

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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.