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Finding the Fourth Proportional to 199,281.39, 274,852.80 and 127,668.08

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Solution

The fourth proportional to 199,281.39, 274,852.80 and 127,668.08 is: 176,082.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,281.39 : 274,852.80 = 127,668.08 : x
  2. Step 2: Convert to fraction form
    199,281.39/274,852.80 = 127,668.08/x
  3. Step 3: Cross multiply
    199,281.39x = 274,852.80 × 127,668.08
  4. Step 4: Simplify right side
    199,281.39x = 35,089,927,884.36
  5. Step 5: Solve for x
    x = 35,089,927,884.36/199,281.39
  6. Step 6: Final answer
    x = 176,082.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.