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Finding the Fourth Proportional to 352,124.40, 528,186.60 and 102,806.40

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Solution

The fourth proportional to 352,124.40, 528,186.60 and 102,806.40 is: 154,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,124.40 : 528,186.60 = 102,806.40 : x
  2. Step 2: Convert to fraction form
    352,124.40/528,186.60 = 102,806.40/x
  3. Step 3: Cross multiply
    352,124.40x = 528,186.60 × 102,806.40
  4. Step 4: Simplify right side
    352,124.40x = 54,300,962,874.24
  5. Step 5: Solve for x
    x = 54,300,962,874.24/352,124.40
  6. Step 6: Final answer
    x = 154,209.60

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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.