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Finding the Fourth Proportional to 339,783.22, 509,711.74 and 112,050.90

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Solution

The fourth proportional to 339,783.22, 509,711.74 and 112,050.90 is: 168,088.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,783.22 : 509,711.74 = 112,050.90 : x
  2. Step 2: Convert to fraction form
    339,783.22/509,711.74 = 112,050.90/x
  3. Step 3: Cross multiply
    339,783.22x = 509,711.74 × 112,050.90
  4. Step 4: Simplify right side
    339,783.22x = 57,113,659,207.57
  5. Step 5: Solve for x
    x = 57,113,659,207.57/339,783.22
  6. Step 6: Final answer
    x = 168,088.52

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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.