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Finding the Fourth Proportional to 170,010.20, 255,015.30 and 151,347.80

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Solution

The fourth proportional to 170,010.20, 255,015.30 and 151,347.80 is: 227,021.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,010.20 : 255,015.30 = 151,347.80 : x
  2. Step 2: Convert to fraction form
    170,010.20/255,015.30 = 151,347.80/x
  3. Step 3: Cross multiply
    170,010.20x = 255,015.30 × 151,347.80
  4. Step 4: Simplify right side
    170,010.20x = 38,596,004,621.34
  5. Step 5: Solve for x
    x = 38,596,004,621.34/170,010.20
  6. Step 6: Final answer
    x = 227,021.70

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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.