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Finding the Fourth Proportional to 352,573, 528,935.40 and 109,409.26

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Solution

The fourth proportional to 352,573, 528,935.40 and 109,409.26 is: 164,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,573 : 528,935.40 = 109,409.26 : x
  2. Step 2: Convert to fraction form
    352,573/528,935.40 = 109,409.26/x
  3. Step 3: Cross multiply
    352,573x = 528,935.40 × 109,409.26
  4. Step 4: Simplify right side
    352,573x = 57,870,430,701.80
  5. Step 5: Solve for x
    x = 57,870,430,701.80/352,573
  6. Step 6: Final answer
    x = 164,137.44

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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.