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Finding the Fourth Proportional to 147,469.50, 221,205.06 and 36,661.50

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Solution

The fourth proportional to 147,469.50, 221,205.06 and 36,661.50 is: 54,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,469.50 : 221,205.06 = 36,661.50 : x
  2. Step 2: Convert to fraction form
    147,469.50/221,205.06 = 36,661.50/x
  3. Step 3: Cross multiply
    147,469.50x = 221,205.06 × 36,661.50
  4. Step 4: Simplify right side
    147,469.50x = 8,109,709,307.19
  5. Step 5: Solve for x
    x = 8,109,709,307.19/147,469.50
  6. Step 6: Final answer
    x = 54,992.45

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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.