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Finding the Fourth Proportional to 70,607.59, 105,860.10 and 33,148.39

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Solution

The fourth proportional to 70,607.59, 105,860.10 and 33,148.39 is: 49,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,607.59 : 105,860.10 = 33,148.39 : x
  2. Step 2: Convert to fraction form
    70,607.59/105,860.10 = 33,148.39/x
  3. Step 3: Cross multiply
    70,607.59x = 105,860.10 × 33,148.39
  4. Step 4: Simplify right side
    70,607.59x = 3,509,091,880.24
  5. Step 5: Solve for x
    x = 3,509,091,880.24/70,607.59
  6. Step 6: Final answer
    x = 49,698.51

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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.