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Finding the Fourth Proportional to 185,212.60, 258,986.60 and 185,212.60

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Solution

The fourth proportional to 185,212.60, 258,986.60 and 185,212.60 is: 258,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,212.60 : 258,986.60 = 185,212.60 : x
  2. Step 2: Convert to fraction form
    185,212.60/258,986.60 = 185,212.60/x
  3. Step 3: Cross multiply
    185,212.60x = 258,986.60 × 185,212.60
  4. Step 4: Simplify right side
    185,212.60x = 47,967,581,551.16
  5. Step 5: Solve for x
    x = 47,967,581,551.16/185,212.60
  6. Step 6: Final answer
    x = 258,986.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.