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Finding the Fourth Proportional to 196,459.60, 295,126.80 and 188,489.20

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Solution

The fourth proportional to 196,459.60, 295,126.80 and 188,489.20 is: 283,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,459.60 : 295,126.80 = 188,489.20 : x
  2. Step 2: Convert to fraction form
    196,459.60/295,126.80 = 188,489.20/x
  3. Step 3: Cross multiply
    196,459.60x = 295,126.80 × 188,489.20
  4. Step 4: Simplify right side
    196,459.60x = 55,628,214,430.56
  5. Step 5: Solve for x
    x = 55,628,214,430.56/196,459.60
  6. Step 6: Final answer
    x = 283,153.45

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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.