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Finding the Fourth Proportional to 334,145.80, 501,218.70 and 84,827.80

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Solution

The fourth proportional to 334,145.80, 501,218.70 and 84,827.80 is: 127,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,145.80 : 501,218.70 = 84,827.80 : x
  2. Step 2: Convert to fraction form
    334,145.80/501,218.70 = 84,827.80/x
  3. Step 3: Cross multiply
    334,145.80x = 501,218.70 × 84,827.80
  4. Step 4: Simplify right side
    334,145.80x = 42,517,279,639.86
  5. Step 5: Solve for x
    x = 42,517,279,639.86/334,145.80
  6. Step 6: Final answer
    x = 127,241.70

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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.