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Finding the Fourth Proportional to 163,855.80, 245,639.70 and 111,094.20

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Solution

The fourth proportional to 163,855.80, 245,639.70 and 111,094.20 is: 166,543.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,855.80 : 245,639.70 = 111,094.20 : x
  2. Step 2: Convert to fraction form
    163,855.80/245,639.70 = 111,094.20/x
  3. Step 3: Cross multiply
    163,855.80x = 245,639.70 × 111,094.20
  4. Step 4: Simplify right side
    163,855.80x = 27,289,145,959.74
  5. Step 5: Solve for x
    x = 27,289,145,959.74/163,855.80
  6. Step 6: Final answer
    x = 166,543.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.