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Finding the Fourth Proportional to 352,626.94, 528,923.98 and 86,373.37

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Solution

The fourth proportional to 352,626.94, 528,923.98 and 86,373.37 is: 129,556.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,626.94 : 528,923.98 = 86,373.37 : x
  2. Step 2: Convert to fraction form
    352,626.94/528,923.98 = 86,373.37/x
  3. Step 3: Cross multiply
    352,626.94x = 528,923.98 × 86,373.37
  4. Step 4: Simplify right side
    352,626.94x = 45,684,946,626.41
  5. Step 5: Solve for x
    x = 45,684,946,626.41/352,626.94
  6. Step 6: Final answer
    x = 129,556.03

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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.