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Finding the Fourth Proportional to 163,045.60, 244,689.90 and 84,119.20

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Solution

The fourth proportional to 163,045.60, 244,689.90 and 84,119.20 is: 126,241.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,045.60 : 244,689.90 = 84,119.20 : x
  2. Step 2: Convert to fraction form
    163,045.60/244,689.90 = 84,119.20/x
  3. Step 3: Cross multiply
    163,045.60x = 244,689.90 × 84,119.20
  4. Step 4: Simplify right side
    163,045.60x = 20,583,118,636.08
  5. Step 5: Solve for x
    x = 20,583,118,636.08/163,045.60
  6. Step 6: Final answer
    x = 126,241.48

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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.