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Finding the Fourth Proportional to 293,085.70, 439,620.31 and 93,418.05

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Solution

The fourth proportional to 293,085.70, 439,620.31 and 93,418.05 is: 140,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,085.70 : 439,620.31 = 93,418.05 : x
  2. Step 2: Convert to fraction form
    293,085.70/439,620.31 = 93,418.05/x
  3. Step 3: Cross multiply
    293,085.70x = 439,620.31 × 93,418.05
  4. Step 4: Simplify right side
    293,085.70x = 41,068,472,100.60
  5. Step 5: Solve for x
    x = 41,068,472,100.60/293,085.70
  6. Step 6: Final answer
    x = 140,124.45

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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.