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Finding the Fourth Proportional to 353,387.44, 530,107.08 and 100,663.12

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Solution

The fourth proportional to 353,387.44, 530,107.08 and 100,663.12 is: 151,002.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,387.44 : 530,107.08 = 100,663.12 : x
  2. Step 2: Convert to fraction form
    353,387.44/530,107.08 = 100,663.12/x
  3. Step 3: Cross multiply
    353,387.44x = 530,107.08 × 100,663.12
  4. Step 4: Simplify right side
    353,387.44x = 53,362,232,606.89
  5. Step 5: Solve for x
    x = 53,362,232,606.89/353,387.44
  6. Step 6: Final answer
    x = 151,002.06

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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.