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Finding the Fourth Proportional to 169,720.61, 254,483.35 and 69,949.67

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Solution

The fourth proportional to 169,720.61, 254,483.35 and 69,949.67 is: 104,884.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,720.61 : 254,483.35 = 69,949.67 : x
  2. Step 2: Convert to fraction form
    169,720.61/254,483.35 = 69,949.67/x
  3. Step 3: Cross multiply
    169,720.61x = 254,483.35 × 69,949.67
  4. Step 4: Simplify right side
    169,720.61x = 17,801,024,905.70
  5. Step 5: Solve for x
    x = 17,801,024,905.70/169,720.61
  6. Step 6: Final answer
    x = 104,884.29

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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.