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Finding the Fourth Proportional to 170,371.68, 255,557.52 and 65,222.88

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Solution

The fourth proportional to 170,371.68, 255,557.52 and 65,222.88 is: 97,834.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,371.68 : 255,557.52 = 65,222.88 : x
  2. Step 2: Convert to fraction form
    170,371.68/255,557.52 = 65,222.88/x
  3. Step 3: Cross multiply
    170,371.68x = 255,557.52 × 65,222.88
  4. Step 4: Simplify right side
    170,371.68x = 16,668,197,460.06
  5. Step 5: Solve for x
    x = 16,668,197,460.06/170,371.68
  6. Step 6: Final answer
    x = 97,834.32

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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.