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Finding the Fourth Proportional to 124,162, 171,313.68 and 73,176.76

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Solution

The fourth proportional to 124,162, 171,313.68 and 73,176.76 is: 100,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,162 : 171,313.68 = 73,176.76 : x
  2. Step 2: Convert to fraction form
    124,162/171,313.68 = 73,176.76/x
  3. Step 3: Cross multiply
    124,162x = 171,313.68 × 73,176.76
  4. Step 4: Simplify right side
    124,162x = 12,536,180,046.08
  5. Step 5: Solve for x
    x = 12,536,180,046.08/124,162
  6. Step 6: Final answer
    x = 100,966.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.