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Finding the Fourth Proportional to 207,797.42, 286,627.47 and 144,111.98

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Solution

The fourth proportional to 207,797.42, 286,627.47 and 144,111.98 is: 198,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,797.42 : 286,627.47 = 144,111.98 : x
  2. Step 2: Convert to fraction form
    207,797.42/286,627.47 = 144,111.98/x
  3. Step 3: Cross multiply
    207,797.42x = 286,627.47 × 144,111.98
  4. Step 4: Simplify right side
    207,797.42x = 41,306,452,224.09
  5. Step 5: Solve for x
    x = 41,306,452,224.09/207,797.42
  6. Step 6: Final answer
    x = 198,782.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.