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Finding the Fourth Proportional to 239,899.56, 359,654.91 and 99,763.08

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Solution

The fourth proportional to 239,899.56, 359,654.91 and 99,763.08 is: 149,563.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,899.56 : 359,654.91 = 99,763.08 : x
  2. Step 2: Convert to fraction form
    239,899.56/359,654.91 = 99,763.08/x
  3. Step 3: Cross multiply
    239,899.56x = 359,654.91 × 99,763.08
  4. Step 4: Simplify right side
    239,899.56x = 35,880,281,558.72
  5. Step 5: Solve for x
    x = 35,880,281,558.72/239,899.56
  6. Step 6: Final answer
    x = 149,563.77

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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.