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Finding the Fourth Proportional to 196,707.20, 295,060.80 and 125,848.40

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Solution

The fourth proportional to 196,707.20, 295,060.80 and 125,848.40 is: 188,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,707.20 : 295,060.80 = 125,848.40 : x
  2. Step 2: Convert to fraction form
    196,707.20/295,060.80 = 125,848.40/x
  3. Step 3: Cross multiply
    196,707.20x = 295,060.80 × 125,848.40
  4. Step 4: Simplify right side
    196,707.20x = 37,132,929,582.72
  5. Step 5: Solve for x
    x = 37,132,929,582.72/196,707.20
  6. Step 6: Final answer
    x = 188,772.60

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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.