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Finding the Fourth Proportional to 156,973.68, 235,455.30 and 68,227.29

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Solution

The fourth proportional to 156,973.68, 235,455.30 and 68,227.29 is: 102,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,973.68 : 235,455.30 = 68,227.29 : x
  2. Step 2: Convert to fraction form
    156,973.68/235,455.30 = 68,227.29/x
  3. Step 3: Cross multiply
    156,973.68x = 235,455.30 × 68,227.29
  4. Step 4: Simplify right side
    156,973.68x = 16,064,477,035.14
  5. Step 5: Solve for x
    x = 16,064,477,035.14/156,973.68
  6. Step 6: Final answer
    x = 102,338.67

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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.