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Finding the Fourth Proportional to 262,030.56, 393,049.08 and 75,042.06

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Solution

The fourth proportional to 262,030.56, 393,049.08 and 75,042.06 is: 112,564.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,030.56 : 393,049.08 = 75,042.06 : x
  2. Step 2: Convert to fraction form
    262,030.56/393,049.08 = 75,042.06/x
  3. Step 3: Cross multiply
    262,030.56x = 393,049.08 × 75,042.06
  4. Step 4: Simplify right side
    262,030.56x = 29,495,212,644.30
  5. Step 5: Solve for x
    x = 29,495,212,644.30/262,030.56
  6. Step 6: Final answer
    x = 112,564.02

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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.