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Finding the Fourth Proportional to 170,543.53, 255,992.69 and 125,615.60

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Solution

The fourth proportional to 170,543.53, 255,992.69 and 125,615.60 is: 188,554.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,543.53 : 255,992.69 = 125,615.60 : x
  2. Step 2: Convert to fraction form
    170,543.53/255,992.69 = 125,615.60/x
  3. Step 3: Cross multiply
    170,543.53x = 255,992.69 × 125,615.60
  4. Step 4: Simplify right side
    170,543.53x = 32,156,674,384.04
  5. Step 5: Solve for x
    x = 32,156,674,384.04/170,543.53
  6. Step 6: Final answer
    x = 188,554.06

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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.