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Finding the Fourth Proportional to 170,466.80, 255,484.20 and 65,145.20

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Solution

The fourth proportional to 170,466.80, 255,484.20 and 65,145.20 is: 97,635.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,466.80 : 255,484.20 = 65,145.20 : x
  2. Step 2: Convert to fraction form
    170,466.80/255,484.20 = 65,145.20/x
  3. Step 3: Cross multiply
    170,466.80x = 255,484.20 × 65,145.20
  4. Step 4: Simplify right side
    170,466.80x = 16,643,569,305.84
  5. Step 5: Solve for x
    x = 16,643,569,305.84/170,466.80
  6. Step 6: Final answer
    x = 97,635.25

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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.