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Finding the Fourth Proportional to 160,609.70, 221,672.40 and 92,670.50

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Solution

The fourth proportional to 160,609.70, 221,672.40 and 92,670.50 is: 127,903.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,609.70 : 221,672.40 = 92,670.50 : x
  2. Step 2: Convert to fraction form
    160,609.70/221,672.40 = 92,670.50/x
  3. Step 3: Cross multiply
    160,609.70x = 221,672.40 × 92,670.50
  4. Step 4: Simplify right side
    160,609.70x = 20,542,492,144.20
  5. Step 5: Solve for x
    x = 20,542,492,144.20/160,609.70
  6. Step 6: Final answer
    x = 127,903.18

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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.