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Finding the Fourth Proportional to 104,158.02, 143,738.03 and 56,411.37

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Solution

The fourth proportional to 104,158.02, 143,738.03 and 56,411.37 is: 77,847.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,158.02 : 143,738.03 = 56,411.37 : x
  2. Step 2: Convert to fraction form
    104,158.02/143,738.03 = 56,411.37/x
  3. Step 3: Cross multiply
    104,158.02x = 143,738.03 × 56,411.37
  4. Step 4: Simplify right side
    104,158.02x = 8,108,458,911.34
  5. Step 5: Solve for x
    x = 8,108,458,911.34/104,158.02
  6. Step 6: Final answer
    x = 77,847.67

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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.