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Finding the Fourth Proportional to 303,548.58, 455,309.37 and 103,886.82

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Solution

The fourth proportional to 303,548.58, 455,309.37 and 103,886.82 is: 155,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,548.58 : 455,309.37 = 103,886.82 : x
  2. Step 2: Convert to fraction form
    303,548.58/455,309.37 = 103,886.82/x
  3. Step 3: Cross multiply
    303,548.58x = 455,309.37 × 103,886.82
  4. Step 4: Simplify right side
    303,548.58x = 47,300,642,565.50
  5. Step 5: Solve for x
    x = 47,300,642,565.50/303,548.58
  6. Step 6: Final answer
    x = 155,825.61

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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.