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Finding the Fourth Proportional to 70,333.40, 105,492.80 and 37,039.98

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Solution

The fourth proportional to 70,333.40, 105,492.80 and 37,039.98 is: 55,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,333.40 : 105,492.80 = 37,039.98 : x
  2. Step 2: Convert to fraction form
    70,333.40/105,492.80 = 37,039.98/x
  3. Step 3: Cross multiply
    70,333.40x = 105,492.80 × 37,039.98
  4. Step 4: Simplify right side
    70,333.40x = 3,907,451,202.14
  5. Step 5: Solve for x
    x = 3,907,451,202.14/70,333.40
  6. Step 6: Final answer
    x = 55,556.13

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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.