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Finding the Fourth Proportional to 74,696, 103,081.76 and 48,246.08

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Solution

The fourth proportional to 74,696, 103,081.76 and 48,246.08 is: 66,580.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,696 : 103,081.76 = 48,246.08 : x
  2. Step 2: Convert to fraction form
    74,696/103,081.76 = 48,246.08/x
  3. Step 3: Cross multiply
    74,696x = 103,081.76 × 48,246.08
  4. Step 4: Simplify right side
    74,696x = 4,973,290,839.50
  5. Step 5: Solve for x
    x = 4,973,290,839.50/74,696
  6. Step 6: Final answer
    x = 66,580.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.