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Finding the Fourth Proportional to 303,808.59, 455,431.16 and 104,081.51

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Solution

The fourth proportional to 303,808.59, 455,431.16 and 104,081.51 is: 156,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,808.59 : 455,431.16 = 104,081.51 : x
  2. Step 2: Convert to fraction form
    303,808.59/455,431.16 = 104,081.51/x
  3. Step 3: Cross multiply
    303,808.59x = 455,431.16 × 104,081.51
  4. Step 4: Simplify right side
    303,808.59x = 47,401,964,232.63
  5. Step 5: Solve for x
    x = 47,401,964,232.63/303,808.59
  6. Step 6: Final answer
    x = 156,025.75

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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.