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Finding the Fourth Proportional to 112,183.95, 154,870.98 and 86,632.95

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Solution

The fourth proportional to 112,183.95, 154,870.98 and 86,632.95 is: 119,597.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,183.95 : 154,870.98 = 86,632.95 : x
  2. Step 2: Convert to fraction form
    112,183.95/154,870.98 = 86,632.95/x
  3. Step 3: Cross multiply
    112,183.95x = 154,870.98 × 86,632.95
  4. Step 4: Simplify right side
    112,183.95x = 13,416,929,866.79
  5. Step 5: Solve for x
    x = 13,416,929,866.79/112,183.95
  6. Step 6: Final answer
    x = 119,597.59

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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.