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Finding the Fourth Proportional to 220,851.16, 304,751.70 and 124,065.88

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Solution

The fourth proportional to 220,851.16, 304,751.70 and 124,065.88 is: 171,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,851.16 : 304,751.70 = 124,065.88 : x
  2. Step 2: Convert to fraction form
    220,851.16/304,751.70 = 124,065.88/x
  3. Step 3: Cross multiply
    220,851.16x = 304,751.70 × 124,065.88
  4. Step 4: Simplify right side
    220,851.16x = 37,809,287,842.00
  5. Step 5: Solve for x
    x = 37,809,287,842.00/220,851.16
  6. Step 6: Final answer
    x = 171,198.05

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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.