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Finding the Fourth Proportional to 70,852.33, 105,723.41 and 63,405.58

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Solution

The fourth proportional to 70,852.33, 105,723.41 and 63,405.58 is: 94,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,852.33 : 105,723.41 = 63,405.58 : x
  2. Step 2: Convert to fraction form
    70,852.33/105,723.41 = 63,405.58/x
  3. Step 3: Cross multiply
    70,852.33x = 105,723.41 × 63,405.58
  4. Step 4: Simplify right side
    70,852.33x = 6,703,454,130.63
  5. Step 5: Solve for x
    x = 6,703,454,130.63/70,852.33
  6. Step 6: Final answer
    x = 94,611.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.