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Finding the Fourth Proportional to 199,851.68, 299,806.68 and 66,707.12

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Solution

The fourth proportional to 199,851.68, 299,806.68 and 66,707.12 is: 100,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,851.68 : 299,806.68 = 66,707.12 : x
  2. Step 2: Convert to fraction form
    199,851.68/299,806.68 = 66,707.12/x
  3. Step 3: Cross multiply
    199,851.68x = 299,806.68 × 66,707.12
  4. Step 4: Simplify right side
    199,851.68x = 19,999,240,179.56
  5. Step 5: Solve for x
    x = 19,999,240,179.56/199,851.68
  6. Step 6: Final answer
    x = 100,070.41

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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.