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Finding the Fourth Proportional to 123,841.37, 185,703.50 and 47,975.45

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Solution

The fourth proportional to 123,841.37, 185,703.50 and 47,975.45 is: 71,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,841.37 : 185,703.50 = 47,975.45 : x
  2. Step 2: Convert to fraction form
    123,841.37/185,703.50 = 47,975.45/x
  3. Step 3: Cross multiply
    123,841.37x = 185,703.50 × 47,975.45
  4. Step 4: Simplify right side
    123,841.37x = 8,909,207,810.68
  5. Step 5: Solve for x
    x = 8,909,207,810.68/123,841.37
  6. Step 6: Final answer
    x = 71,940.48

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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.