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Finding the Fourth Proportional to 288,984.04, 398,818.98 and 161,700.64

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Solution

The fourth proportional to 288,984.04, 398,818.98 and 161,700.64 is: 223,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,984.04 : 398,818.98 = 161,700.64 : x
  2. Step 2: Convert to fraction form
    288,984.04/398,818.98 = 161,700.64/x
  3. Step 3: Cross multiply
    288,984.04x = 398,818.98 × 161,700.64
  4. Step 4: Simplify right side
    288,984.04x = 64,489,284,310.15
  5. Step 5: Solve for x
    x = 64,489,284,310.15/288,984.04
  6. Step 6: Final answer
    x = 223,158.64

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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.