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Finding the Fourth Proportional to 196,701.20, 295,051.80 and 125,842.40

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Solution

The fourth proportional to 196,701.20, 295,051.80 and 125,842.40 is: 188,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,701.20 : 295,051.80 = 125,842.40 : x
  2. Step 2: Convert to fraction form
    196,701.20/295,051.80 = 125,842.40/x
  3. Step 3: Cross multiply
    196,701.20x = 295,051.80 × 125,842.40
  4. Step 4: Simplify right side
    196,701.20x = 37,130,026,636.32
  5. Step 5: Solve for x
    x = 37,130,026,636.32/196,701.20
  6. Step 6: Final answer
    x = 188,763.60

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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.