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Finding the Fourth Proportional to 210,684.60, 315,566.10 and 163,567.80

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Solution

The fourth proportional to 210,684.60, 315,566.10 and 163,567.80 is: 244,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,684.60 : 315,566.10 = 163,567.80 : x
  2. Step 2: Convert to fraction form
    210,684.60/315,566.10 = 163,567.80/x
  3. Step 3: Cross multiply
    210,684.60x = 315,566.10 × 163,567.80
  4. Step 4: Simplify right side
    210,684.60x = 51,616,452,731.58
  5. Step 5: Solve for x
    x = 51,616,452,731.58/210,684.60
  6. Step 6: Final answer
    x = 244,993.95

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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.