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Finding the Fourth Proportional to 197,255.80, 295,689.30 and 97,431.40

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Solution

The fourth proportional to 197,255.80, 295,689.30 and 97,431.40 is: 146,051.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,255.80 : 295,689.30 = 97,431.40 : x
  2. Step 2: Convert to fraction form
    197,255.80/295,689.30 = 97,431.40/x
  3. Step 3: Cross multiply
    197,255.80x = 295,689.30 × 97,431.40
  4. Step 4: Simplify right side
    197,255.80x = 28,809,422,464.02
  5. Step 5: Solve for x
    x = 28,809,422,464.02/197,255.80
  6. Step 6: Final answer
    x = 146,051.08

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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.