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Finding the Fourth Proportional to 69,492.96, 104,180.72 and 47,243.84

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Solution

The fourth proportional to 69,492.96, 104,180.72 and 47,243.84 is: 70,825.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,492.96 : 104,180.72 = 47,243.84 : x
  2. Step 2: Convert to fraction form
    69,492.96/104,180.72 = 47,243.84/x
  3. Step 3: Cross multiply
    69,492.96x = 104,180.72 × 47,243.84
  4. Step 4: Simplify right side
    69,492.96x = 4,921,897,266.76
  5. Step 5: Solve for x
    x = 4,921,897,266.76/69,492.96
  6. Step 6: Final answer
    x = 70,825.84

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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.