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Finding the Fourth Proportional to 155,503.50, 214,620.75 and 117,712.14

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Solution

The fourth proportional to 155,503.50, 214,620.75 and 117,712.14 is: 162,462.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,503.50 : 214,620.75 = 117,712.14 : x
  2. Step 2: Convert to fraction form
    155,503.50/214,620.75 = 117,712.14/x
  3. Step 3: Cross multiply
    155,503.50x = 214,620.75 × 117,712.14
  4. Step 4: Simplify right side
    155,503.50x = 25,263,467,770.91
  5. Step 5: Solve for x
    x = 25,263,467,770.91/155,503.50
  6. Step 6: Final answer
    x = 162,462.37

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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.