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Finding the Fourth Proportional to 303,809.88, 455,779.44 and 104,076.66

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Solution

The fourth proportional to 303,809.88, 455,779.44 and 104,076.66 is: 156,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,809.88 : 455,779.44 = 104,076.66 : x
  2. Step 2: Convert to fraction form
    303,809.88/455,779.44 = 104,076.66/x
  3. Step 3: Cross multiply
    303,809.88x = 455,779.44 × 104,076.66
  4. Step 4: Simplify right side
    303,809.88x = 47,436,001,811.87
  5. Step 5: Solve for x
    x = 47,436,001,811.87/303,809.88
  6. Step 6: Final answer
    x = 156,137.13

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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.