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Finding the Fourth Proportional to 346,908.78, 520,422.50 and 119,193.48

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Solution

The fourth proportional to 346,908.78, 520,422.50 and 119,193.48 is: 178,810.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,908.78 : 520,422.50 = 119,193.48 : x
  2. Step 2: Convert to fraction form
    346,908.78/520,422.50 = 119,193.48/x
  3. Step 3: Cross multiply
    346,908.78x = 520,422.50 × 119,193.48
  4. Step 4: Simplify right side
    346,908.78x = 62,030,969,143.28
  5. Step 5: Solve for x
    x = 62,030,969,143.28/346,908.78
  6. Step 6: Final answer
    x = 178,810.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.