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Finding the Fourth Proportional to 112,794.85, 155,656.88 and 67,474.74

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Solution

The fourth proportional to 112,794.85, 155,656.88 and 67,474.74 is: 93,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,794.85 : 155,656.88 = 67,474.74 : x
  2. Step 2: Convert to fraction form
    112,794.85/155,656.88 = 67,474.74/x
  3. Step 3: Cross multiply
    112,794.85x = 155,656.88 × 67,474.74
  4. Step 4: Simplify right side
    112,794.85x = 10,502,907,507.21
  5. Step 5: Solve for x
    x = 10,502,907,507.21/112,794.85
  6. Step 6: Final answer
    x = 93,115.13

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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.