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Finding the Fourth Proportional to 170,573.51, 255,652.72 and 120,668.00

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Solution

The fourth proportional to 170,573.51, 255,652.72 and 120,668.00 is: 180,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,573.51 : 255,652.72 = 120,668.00 : x
  2. Step 2: Convert to fraction form
    170,573.51/255,652.72 = 120,668.00/x
  3. Step 3: Cross multiply
    170,573.51x = 255,652.72 × 120,668.00
  4. Step 4: Simplify right side
    170,573.51x = 30,849,100,837.03
  5. Step 5: Solve for x
    x = 30,849,100,837.03/170,573.51
  6. Step 6: Final answer
    x = 180,855.17

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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.