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Finding the Fourth Proportional to 274,221.16, 411,281.30 and 124,425.42

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Solution

The fourth proportional to 274,221.16, 411,281.30 and 124,425.42 is: 186,615.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,221.16 : 411,281.30 = 124,425.42 : x
  2. Step 2: Convert to fraction form
    274,221.16/411,281.30 = 124,425.42/x
  3. Step 3: Cross multiply
    274,221.16x = 411,281.30 × 124,425.42
  4. Step 4: Simplify right side
    274,221.16x = 51,173,848,490.65
  5. Step 5: Solve for x
    x = 51,173,848,490.65/274,221.16
  6. Step 6: Final answer
    x = 186,615.24

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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.