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Finding the Fourth Proportional to 559,986.70, 839,980.05 and 160,591.90

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Solution

The fourth proportional to 559,986.70, 839,980.05 and 160,591.90 is: 240,887.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,986.70 : 839,980.05 = 160,591.90 : x
  2. Step 2: Convert to fraction form
    559,986.70/839,980.05 = 160,591.90/x
  3. Step 3: Cross multiply
    559,986.70x = 839,980.05 × 160,591.90
  4. Step 4: Simplify right side
    559,986.70x = 134,893,992,191.60
  5. Step 5: Solve for x
    x = 134,893,992,191.60/559,986.70
  6. Step 6: Final answer
    x = 240,887.85

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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.