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Finding the Fourth Proportional to 199,622.81, 275,479.59 and 114,739.67

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Solution

The fourth proportional to 199,622.81, 275,479.59 and 114,739.67 is: 158,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,622.81 : 275,479.59 = 114,739.67 : x
  2. Step 2: Convert to fraction form
    199,622.81/275,479.59 = 114,739.67/x
  3. Step 3: Cross multiply
    199,622.81x = 275,479.59 × 114,739.67
  4. Step 4: Simplify right side
    199,622.81x = 31,608,437,248.34
  5. Step 5: Solve for x
    x = 31,608,437,248.34/199,622.81
  6. Step 6: Final answer
    x = 158,340.81

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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.