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Finding the Fourth Proportional to 70,656.90, 105,968.76 and 26,304.54

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Solution

The fourth proportional to 70,656.90, 105,968.76 and 26,304.54 is: 39,450.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656.90 : 105,968.76 = 26,304.54 : x
  2. Step 2: Convert to fraction form
    70,656.90/105,968.76 = 26,304.54/x
  3. Step 3: Cross multiply
    70,656.90x = 105,968.76 × 26,304.54
  4. Step 4: Simplify right side
    70,656.90x = 2,787,459,486.17
  5. Step 5: Solve for x
    x = 2,787,459,486.17/70,656.90
  6. Step 6: Final answer
    x = 39,450.63

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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.