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Finding the Fourth Proportional to 103,671.67, 143,078.51 and 58,360.67

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Solution

The fourth proportional to 103,671.67, 143,078.51 and 58,360.67 is: 80,544.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,671.67 : 143,078.51 = 58,360.67 : x
  2. Step 2: Convert to fraction form
    103,671.67/143,078.51 = 58,360.67/x
  3. Step 3: Cross multiply
    103,671.67x = 143,078.51 × 58,360.67
  4. Step 4: Simplify right side
    103,671.67x = 8,350,157,706.20
  5. Step 5: Solve for x
    x = 8,350,157,706.20/103,671.67
  6. Step 6: Final answer
    x = 80,544.26

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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.