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Finding the Fourth Proportional to 355,906.17, 533,906.24 and 131,424.39

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Solution

The fourth proportional to 355,906.17, 533,906.24 and 131,424.39 is: 197,153.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,906.17 : 533,906.24 = 131,424.39 : x
  2. Step 2: Convert to fraction form
    355,906.17/533,906.24 = 131,424.39/x
  3. Step 3: Cross multiply
    355,906.17x = 533,906.24 × 131,424.39
  4. Step 4: Simplify right side
    355,906.17x = 70,168,301,252.07
  5. Step 5: Solve for x
    x = 70,168,301,252.07/355,906.17
  6. Step 6: Final answer
    x = 197,153.93

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1.5x scale

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.