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Finding the Fourth Proportional to 259,807.54, 358,210.13 and 198,629.55

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Solution

The fourth proportional to 259,807.54, 358,210.13 and 198,629.55 is: 273,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,807.54 : 358,210.13 = 198,629.55 : x
  2. Step 2: Convert to fraction form
    259,807.54/358,210.13 = 198,629.55/x
  3. Step 3: Cross multiply
    259,807.54x = 358,210.13 × 198,629.55
  4. Step 4: Simplify right side
    259,807.54x = 71,151,116,927.34
  5. Step 5: Solve for x
    x = 71,151,116,927.34/259,807.54
  6. Step 6: Final answer
    x = 273,860.86

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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.