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Finding the Fourth Proportional to 112,797.56, 155,660.64 and 67,477.46

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Solution

The fourth proportional to 112,797.56, 155,660.64 and 67,477.46 is: 93,118.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,797.56 : 155,660.64 = 67,477.46 : x
  2. Step 2: Convert to fraction form
    112,797.56/155,660.64 = 67,477.46/x
  3. Step 3: Cross multiply
    112,797.56x = 155,660.64 × 67,477.46
  4. Step 4: Simplify right side
    112,797.56x = 10,503,583,577.83
  5. Step 5: Solve for x
    x = 10,503,583,577.83/112,797.56
  6. Step 6: Final answer
    x = 93,118.89

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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.