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Finding the Fourth Proportional to 296,999.10, 445,498.65 and 83,766.60

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Solution

The fourth proportional to 296,999.10, 445,498.65 and 83,766.60 is: 125,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,999.10 : 445,498.65 = 83,766.60 : x
  2. Step 2: Convert to fraction form
    296,999.10/445,498.65 = 83,766.60/x
  3. Step 3: Cross multiply
    296,999.10x = 445,498.65 × 83,766.60
  4. Step 4: Simplify right side
    296,999.10x = 37,317,907,215.09
  5. Step 5: Solve for x
    x = 37,317,907,215.09/296,999.10
  6. Step 6: Final answer
    x = 125,649.90

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1.5x scale

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.