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Finding the Fourth Proportional to 170,074.20, 255,111.30 and 151,703.40

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Solution

The fourth proportional to 170,074.20, 255,111.30 and 151,703.40 is: 227,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,074.20 : 255,111.30 = 151,703.40 : x
  2. Step 2: Convert to fraction form
    170,074.20/255,111.30 = 151,703.40/x
  3. Step 3: Cross multiply
    170,074.20x = 255,111.30 × 151,703.40
  4. Step 4: Simplify right side
    170,074.20x = 38,701,251,588.42
  5. Step 5: Solve for x
    x = 38,701,251,588.42/170,074.20
  6. Step 6: Final answer
    x = 227,555.10

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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.