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Finding the Fourth Proportional to 210,863.02, 316,481.64 and 98,604.34

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Solution

The fourth proportional to 210,863.02, 316,481.64 and 98,604.34 is: 147,994.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,863.02 : 316,481.64 = 98,604.34 : x
  2. Step 2: Convert to fraction form
    210,863.02/316,481.64 = 98,604.34/x
  3. Step 3: Cross multiply
    210,863.02x = 316,481.64 × 98,604.34
  4. Step 4: Simplify right side
    210,863.02x = 31,206,463,234.32
  5. Step 5: Solve for x
    x = 31,206,463,234.32/210,863.02
  6. Step 6: Final answer
    x = 147,994.01

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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.