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Finding the Fourth Proportional to 355,905.92, 533,905.86 and 131,424.14

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Solution

The fourth proportional to 355,905.92, 533,905.86 and 131,424.14 is: 197,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,905.92 : 533,905.86 = 131,424.14 : x
  2. Step 2: Convert to fraction form
    355,905.92/533,905.86 = 131,424.14/x
  3. Step 3: Cross multiply
    355,905.92x = 533,905.86 × 131,424.14
  4. Step 4: Simplify right side
    355,905.92x = 70,168,118,491.46
  5. Step 5: Solve for x
    x = 70,168,118,491.46/355,905.92
  6. Step 6: Final answer
    x = 197,153.56

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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.