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Finding the Fourth Proportional to 180,697.46, 249,355.78 and 104,219.82

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Solution

The fourth proportional to 180,697.46, 249,355.78 and 104,219.82 is: 143,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,697.46 : 249,355.78 = 104,219.82 : x
  2. Step 2: Convert to fraction form
    180,697.46/249,355.78 = 104,219.82/x
  3. Step 3: Cross multiply
    180,697.46x = 249,355.78 × 104,219.82
  4. Step 4: Simplify right side
    180,697.46x = 25,987,814,507.56
  5. Step 5: Solve for x
    x = 25,987,814,507.56/180,697.46
  6. Step 6: Final answer
    x = 143,819.48

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1.5x scale

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.