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Finding the Fourth Proportional to 170,466.40, 255,718.80 and 52,136.80

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Solution

The fourth proportional to 170,466.40, 255,718.80 and 52,136.80 is: 78,211.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,466.40 : 255,718.80 = 52,136.80 : x
  2. Step 2: Convert to fraction form
    170,466.40/255,718.80 = 52,136.80/x
  3. Step 3: Cross multiply
    170,466.40x = 255,718.80 × 52,136.80
  4. Step 4: Simplify right side
    170,466.40x = 13,332,359,931.84
  5. Step 5: Solve for x
    x = 13,332,359,931.84/170,466.40
  6. Step 6: Final answer
    x = 78,211.07

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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.