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Finding the Fourth Proportional to 336,511.19, 504,762.66 and 83,793.78

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Solution

The fourth proportional to 336,511.19, 504,762.66 and 83,793.78 is: 125,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,511.19 : 504,762.66 = 83,793.78 : x
  2. Step 2: Convert to fraction form
    336,511.19/504,762.66 = 83,793.78/x
  3. Step 3: Cross multiply
    336,511.19x = 504,762.66 × 83,793.78
  4. Step 4: Simplify right side
    336,511.19x = 42,295,971,284.25
  5. Step 5: Solve for x
    x = 42,295,971,284.25/336,511.19
  6. Step 6: Final answer
    x = 125,689.64

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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.