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Finding the Fourth Proportional to 346,465.80, 519,698.70 and 169,318.80

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Solution

The fourth proportional to 346,465.80, 519,698.70 and 169,318.80 is: 253,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,465.80 : 519,698.70 = 169,318.80 : x
  2. Step 2: Convert to fraction form
    346,465.80/519,698.70 = 169,318.80/x
  3. Step 3: Cross multiply
    346,465.80x = 519,698.70 × 169,318.80
  4. Step 4: Simplify right side
    346,465.80x = 87,994,760,245.56
  5. Step 5: Solve for x
    x = 87,994,760,245.56/346,465.80
  6. Step 6: Final answer
    x = 253,978.20

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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.