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Finding the Fourth Proportional to 70,080.40, 105,053.82 and 23,300.56

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Solution

The fourth proportional to 70,080.40, 105,053.82 and 23,300.56 is: 34,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,080.40 : 105,053.82 = 23,300.56 : x
  2. Step 2: Convert to fraction form
    70,080.40/105,053.82 = 23,300.56/x
  3. Step 3: Cross multiply
    70,080.40x = 105,053.82 × 23,300.56
  4. Step 4: Simplify right side
    70,080.40x = 2,447,812,836.14
  5. Step 5: Solve for x
    x = 2,447,812,836.14/70,080.40
  6. Step 6: Final answer
    x = 34,928.64

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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.