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Finding the Fourth Proportional to 259,040.91, 388,649.59 and 158,041.16

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Solution

The fourth proportional to 259,040.91, 388,649.59 and 158,041.16 is: 237,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,040.91 : 388,649.59 = 158,041.16 : x
  2. Step 2: Convert to fraction form
    259,040.91/388,649.59 = 158,041.16/x
  3. Step 3: Cross multiply
    259,040.91x = 388,649.59 × 158,041.16
  4. Step 4: Simplify right side
    259,040.91x = 61,422,629,303.67
  5. Step 5: Solve for x
    x = 61,422,629,303.67/259,040.91
  6. Step 6: Final answer
    x = 237,115.56

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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.