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Finding the Fourth Proportional to 559,364.45, 839,046.77 and 185,387.45

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Solution

The fourth proportional to 559,364.45, 839,046.77 and 185,387.45 is: 278,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,364.45 : 839,046.77 = 185,387.45 : x
  2. Step 2: Convert to fraction form
    559,364.45/839,046.77 = 185,387.45/x
  3. Step 3: Cross multiply
    559,364.45x = 839,046.77 × 185,387.45
  4. Step 4: Simplify right side
    559,364.45x = 155,548,735,998.87
  5. Step 5: Solve for x
    x = 155,548,735,998.87/559,364.45
  6. Step 6: Final answer
    x = 278,081.20

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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.