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Finding the Fourth Proportional to 345,925.92, 477,359.55 and 192,980.10

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Solution

The fourth proportional to 345,925.92, 477,359.55 and 192,980.10 is: 266,302.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,925.92 : 477,359.55 = 192,980.10 : x
  2. Step 2: Convert to fraction form
    345,925.92/477,359.55 = 192,980.10/x
  3. Step 3: Cross multiply
    345,925.92x = 477,359.55 × 192,980.10
  4. Step 4: Simplify right side
    345,925.92x = 92,120,893,694.96
  5. Step 5: Solve for x
    x = 92,120,893,694.96/345,925.92
  6. Step 6: Final answer
    x = 266,302.37

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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.