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Finding the Fourth Proportional to 98,325.41, 147,353.54 and 74,289.96

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Solution

The fourth proportional to 98,325.41, 147,353.54 and 74,289.96 is: 111,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,325.41 : 147,353.54 = 74,289.96 : x
  2. Step 2: Convert to fraction form
    98,325.41/147,353.54 = 74,289.96/x
  3. Step 3: Cross multiply
    98,325.41x = 147,353.54 × 74,289.96
  4. Step 4: Simplify right side
    98,325.41x = 10,946,888,221.01
  5. Step 5: Solve for x
    x = 10,946,888,221.01/98,325.41
  6. Step 6: Final answer
    x = 111,333.26

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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.