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Finding the Fourth Proportional to 355,606.10, 534,023.55 and 189,718.10

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Solution

The fourth proportional to 355,606.10, 534,023.55 and 189,718.10 is: 284,904.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,606.10 : 534,023.55 = 189,718.10 : x
  2. Step 2: Convert to fraction form
    355,606.10/534,023.55 = 189,718.10/x
  3. Step 3: Cross multiply
    355,606.10x = 534,023.55 × 189,718.10
  4. Step 4: Simplify right side
    355,606.10x = 101,313,933,261.26
  5. Step 5: Solve for x
    x = 101,313,933,261.26/355,606.10
  6. Step 6: Final answer
    x = 284,904.94

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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.