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Finding the Fourth Proportional to 210,563.55, 315,546.71 and 162,957.02

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Solution

The fourth proportional to 210,563.55, 315,546.71 and 162,957.02 is: 244,204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,563.55 : 315,546.71 = 162,957.02 : x
  2. Step 2: Convert to fraction form
    210,563.55/315,546.71 = 162,957.02/x
  3. Step 3: Cross multiply
    210,563.55x = 315,546.71 × 162,957.02
  4. Step 4: Simplify right side
    210,563.55x = 51,420,549,139.89
  5. Step 5: Solve for x
    x = 51,420,549,139.89/210,563.55
  6. Step 6: Final answer
    x = 244,204.42

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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.