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Finding the Fourth Proportional to 127,223, 190,834.58 and 39,671

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Solution

The fourth proportional to 127,223, 190,834.58 and 39,671 is: 59,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,223 : 190,834.58 = 39,671 : x
  2. Step 2: Convert to fraction form
    127,223/190,834.58 = 39,671/x
  3. Step 3: Cross multiply
    127,223x = 190,834.58 × 39,671
  4. Step 4: Simplify right side
    127,223x = 7,570,598,623.18
  5. Step 5: Solve for x
    x = 7,570,598,623.18/127,223
  6. Step 6: Final answer
    x = 59,506.52

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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.