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Finding the Fourth Proportional to 352,133.20, 528,199.80 and 352,133.20

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Solution

The fourth proportional to 352,133.20, 528,199.80 and 352,133.20 is: 528,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,133.20 : 528,199.80 = 352,133.20 : x
  2. Step 2: Convert to fraction form
    352,133.20/528,199.80 = 352,133.20/x
  3. Step 3: Cross multiply
    352,133.20x = 528,199.80 × 352,133.20
  4. Step 4: Simplify right side
    352,133.20x = 185,996,685,813.36
  5. Step 5: Solve for x
    x = 185,996,685,813.36/352,133.20
  6. Step 6: Final answer
    x = 528,199.80

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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.