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Finding the Fourth Proportional to 253,975.41, 380,866.50 and 83,157.33

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Solution

The fourth proportional to 253,975.41, 380,866.50 and 83,157.33 is: 124,704.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,975.41 : 380,866.50 = 83,157.33 : x
  2. Step 2: Convert to fraction form
    253,975.41/380,866.50 = 83,157.33/x
  3. Step 3: Cross multiply
    253,975.41x = 380,866.50 × 83,157.33
  4. Step 4: Simplify right side
    253,975.41x = 31,671,841,226.45
  5. Step 5: Solve for x
    x = 31,671,841,226.45/253,975.41
  6. Step 6: Final answer
    x = 124,704.36

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1.5x scale

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.