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Finding the Fourth Proportional to 188,030.99, 259,293.80 and 112,623.23

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Solution

The fourth proportional to 188,030.99, 259,293.80 and 112,623.23 is: 155,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,030.99 : 259,293.80 = 112,623.23 : x
  2. Step 2: Convert to fraction form
    188,030.99/259,293.80 = 112,623.23/x
  3. Step 3: Cross multiply
    188,030.99x = 259,293.80 × 112,623.23
  4. Step 4: Simplify right side
    188,030.99x = 29,202,503,415.39
  5. Step 5: Solve for x
    x = 29,202,503,415.39/188,030.99
  6. Step 6: Final answer
    x = 155,306.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.