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Finding the Fourth Proportional to 355,244.52, 533,129.76 and 168,256.56

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Solution

The fourth proportional to 355,244.52, 533,129.76 and 168,256.56 is: 252,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,244.52 : 533,129.76 = 168,256.56 : x
  2. Step 2: Convert to fraction form
    355,244.52/533,129.76 = 168,256.56/x
  3. Step 3: Cross multiply
    355,244.52x = 533,129.76 × 168,256.56
  4. Step 4: Simplify right side
    355,244.52x = 89,702,579,451.23
  5. Step 5: Solve for x
    x = 89,702,579,451.23/355,244.52
  6. Step 6: Final answer
    x = 252,509.40

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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.