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Finding the Fourth Proportional to 160,685.67, 221,742.45 and 92,702.79

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Solution

The fourth proportional to 160,685.67, 221,742.45 and 92,702.79 is: 127,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,685.67 : 221,742.45 = 92,702.79 : x
  2. Step 2: Convert to fraction form
    160,685.67/221,742.45 = 92,702.79/x
  3. Step 3: Cross multiply
    160,685.67x = 221,742.45 × 92,702.79
  4. Step 4: Simplify right side
    160,685.67x = 20,556,143,776.44
  5. Step 5: Solve for x
    x = 20,556,143,776.44/160,685.67
  6. Step 6: Final answer
    x = 127,927.67

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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.