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Finding the Fourth Proportional to 245,076.34, 367,413.63 and 87,214.90

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Solution

The fourth proportional to 245,076.34, 367,413.63 and 87,214.90 is: 130,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,076.34 : 367,413.63 = 87,214.90 : x
  2. Step 2: Convert to fraction form
    245,076.34/367,413.63 = 87,214.90/x
  3. Step 3: Cross multiply
    245,076.34x = 367,413.63 × 87,214.90
  4. Step 4: Simplify right side
    245,076.34x = 32,043,942,999.09
  5. Step 5: Solve for x
    x = 32,043,942,999.09/245,076.34
  6. Step 6: Final answer
    x = 130,750.86

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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.