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Finding the Fourth Proportional to 170,791.77, 235,674.74 and 99,157.80

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Solution

The fourth proportional to 170,791.77, 235,674.74 and 99,157.80 is: 136,827.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,791.77 : 235,674.74 = 99,157.80 : x
  2. Step 2: Convert to fraction form
    170,791.77/235,674.74 = 99,157.80/x
  3. Step 3: Cross multiply
    170,791.77x = 235,674.74 × 99,157.80
  4. Step 4: Simplify right side
    170,791.77x = 23,368,987,649.00
  5. Step 5: Solve for x
    x = 23,368,987,649.00/170,791.77
  6. Step 6: Final answer
    x = 136,827.37

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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.