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Finding the Fourth Proportional to 112,017.74, 154,584.40 and 61,716.74

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Solution

The fourth proportional to 112,017.74, 154,584.40 and 61,716.74 is: 85,169.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,017.74 : 154,584.40 = 61,716.74 : x
  2. Step 2: Convert to fraction form
    112,017.74/154,584.40 = 61,716.74/x
  3. Step 3: Cross multiply
    112,017.74x = 154,584.40 × 61,716.74
  4. Step 4: Simplify right side
    112,017.74x = 9,540,445,222.86
  5. Step 5: Solve for x
    x = 9,540,445,222.86/112,017.74
  6. Step 6: Final answer
    x = 85,169.06

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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.