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Finding the Fourth Proportional to 103,629, 155,492.70 and 44,481.60

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Solution

The fourth proportional to 103,629, 155,492.70 and 44,481.60 is: 66,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629 : 155,492.70 = 44,481.60 : x
  2. Step 2: Convert to fraction form
    103,629/155,492.70 = 44,481.60/x
  3. Step 3: Cross multiply
    103,629x = 155,492.70 × 44,481.60
  4. Step 4: Simplify right side
    103,629x = 6,916,564,084.32
  5. Step 5: Solve for x
    x = 6,916,564,084.32/103,629
  6. Step 6: Final answer
    x = 66,743.52

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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.