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Finding the Fourth Proportional to 199,596.09, 299,329.34 and 66,440.60

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Solution

The fourth proportional to 199,596.09, 299,329.34 and 66,440.60 is: 99,639.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,596.09 : 299,329.34 = 66,440.60 : x
  2. Step 2: Convert to fraction form
    199,596.09/299,329.34 = 66,440.60/x
  3. Step 3: Cross multiply
    199,596.09x = 299,329.34 × 66,440.60
  4. Step 4: Simplify right side
    199,596.09x = 19,887,619,118.35
  5. Step 5: Solve for x
    x = 19,887,619,118.35/199,596.09
  6. Step 6: Final answer
    x = 99,639.32

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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.