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Finding the Fourth Proportional to 178,989.03, 268,365.03 and 70,846.74

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Solution

The fourth proportional to 178,989.03, 268,365.03 and 70,846.74 is: 106,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,989.03 : 268,365.03 = 70,846.74 : x
  2. Step 2: Convert to fraction form
    178,989.03/268,365.03 = 70,846.74/x
  3. Step 3: Cross multiply
    178,989.03x = 268,365.03 × 70,846.74
  4. Step 4: Simplify right side
    178,989.03x = 19,012,787,505.50
  5. Step 5: Solve for x
    x = 19,012,787,505.50/178,989.03
  6. Step 6: Final answer
    x = 106,223.20

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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.