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Finding the Fourth Proportional to 336,846.40, 505,339.80 and 112,276.60

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Solution

The fourth proportional to 336,846.40, 505,339.80 and 112,276.60 is: 168,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,846.40 : 505,339.80 = 112,276.60 : x
  2. Step 2: Convert to fraction form
    336,846.40/505,339.80 = 112,276.60/x
  3. Step 3: Cross multiply
    336,846.40x = 505,339.80 × 112,276.60
  4. Step 4: Simplify right side
    336,846.40x = 56,737,834,588.68
  5. Step 5: Solve for x
    x = 56,737,834,588.68/336,846.40
  6. Step 6: Final answer
    x = 168,438.30

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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.