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Finding the Fourth Proportional to 70,645.41, 105,968.16 and 44,368.59

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Solution

The fourth proportional to 70,645.41, 105,968.16 and 44,368.59 is: 66,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,645.41 : 105,968.16 = 44,368.59 : x
  2. Step 2: Convert to fraction form
    70,645.41/105,968.16 = 44,368.59/x
  3. Step 3: Cross multiply
    70,645.41x = 105,968.16 × 44,368.59
  4. Step 4: Simplify right side
    70,645.41x = 4,701,657,844.09
  5. Step 5: Solve for x
    x = 4,701,657,844.09/70,645.41
  6. Step 6: Final answer
    x = 66,552.91

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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.