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Finding the Fourth Proportional to 112,318.65, 168,393.74 and 67,936.32

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Solution

The fourth proportional to 112,318.65, 168,393.74 and 67,936.32 is: 101,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,318.65 : 168,393.74 = 67,936.32 : x
  2. Step 2: Convert to fraction form
    112,318.65/168,393.74 = 67,936.32/x
  3. Step 3: Cross multiply
    112,318.65x = 168,393.74 × 67,936.32
  4. Step 4: Simplify right side
    112,318.65x = 11,440,050,666.96
  5. Step 5: Solve for x
    x = 11,440,050,666.96/112,318.65
  6. Step 6: Final answer
    x = 101,853.53

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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.