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Finding the Fourth Proportional to 121,556.80, 182,210.70 and 46,657.54

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Solution

The fourth proportional to 121,556.80, 182,210.70 and 46,657.54 is: 69,938.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,556.80 : 182,210.70 = 46,657.54 : x
  2. Step 2: Convert to fraction form
    121,556.80/182,210.70 = 46,657.54/x
  3. Step 3: Cross multiply
    121,556.80x = 182,210.70 × 46,657.54
  4. Step 4: Simplify right side
    121,556.80x = 8,501,503,023.68
  5. Step 5: Solve for x
    x = 8,501,503,023.68/121,556.80
  6. Step 6: Final answer
    x = 69,938.52

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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.