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Finding the Fourth Proportional to 143,042.67, 214,599.42 and 101,005.11

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Solution

The fourth proportional to 143,042.67, 214,599.42 and 101,005.11 is: 151,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,042.67 : 214,599.42 = 101,005.11 : x
  2. Step 2: Convert to fraction form
    143,042.67/214,599.42 = 101,005.11/x
  3. Step 3: Cross multiply
    143,042.67x = 214,599.42 × 101,005.11
  4. Step 4: Simplify right side
    143,042.67x = 21,675,638,023.04
  5. Step 5: Solve for x
    x = 21,675,638,023.04/143,042.67
  6. Step 6: Final answer
    x = 151,532.67

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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.