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Finding the Fourth Proportional to 196,699.20, 295,048.80 and 125,840.40

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Solution

The fourth proportional to 196,699.20, 295,048.80 and 125,840.40 is: 188,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,699.20 : 295,048.80 = 125,840.40 : x
  2. Step 2: Convert to fraction form
    196,699.20/295,048.80 = 125,840.40/x
  3. Step 3: Cross multiply
    196,699.20x = 295,048.80 × 125,840.40
  4. Step 4: Simplify right side
    196,699.20x = 37,129,059,011.52
  5. Step 5: Solve for x
    x = 37,129,059,011.52/196,699.20
  6. Step 6: Final answer
    x = 188,760.60

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1.5x scale

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.