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Finding the Fourth Proportional to 489,400.52, 734,013.02 and 134,367.80

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Solution

The fourth proportional to 489,400.52, 734,013.02 and 134,367.80 is: 201,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,400.52 : 734,013.02 = 134,367.80 : x
  2. Step 2: Convert to fraction form
    489,400.52/734,013.02 = 134,367.80/x
  3. Step 3: Cross multiply
    489,400.52x = 734,013.02 × 134,367.80
  4. Step 4: Simplify right side
    489,400.52x = 98,627,714,668.76
  5. Step 5: Solve for x
    x = 98,627,714,668.76/489,400.52
  6. Step 6: Final answer
    x = 201,527.60

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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.