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Finding the Fourth Proportional to 335,776.56, 503,719.56 and 99,143.16

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Solution

The fourth proportional to 335,776.56, 503,719.56 and 99,143.16 is: 148,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,776.56 : 503,719.56 = 99,143.16 : x
  2. Step 2: Convert to fraction form
    335,776.56/503,719.56 = 99,143.16/x
  3. Step 3: Cross multiply
    335,776.56x = 503,719.56 × 99,143.16
  4. Step 4: Simplify right side
    335,776.56x = 49,940,348,932.21
  5. Step 5: Solve for x
    x = 49,940,348,932.21/335,776.56
  6. Step 6: Final answer
    x = 148,730.90

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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.