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Finding the Fourth Proportional to 352,002.40, 528,133.20 and 141,791.20

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Solution

The fourth proportional to 352,002.40, 528,133.20 and 141,791.20 is: 212,739.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,002.40 : 528,133.20 = 141,791.20 : x
  2. Step 2: Convert to fraction form
    352,002.40/528,133.20 = 141,791.20/x
  3. Step 3: Cross multiply
    352,002.40x = 528,133.20 × 141,791.20
  4. Step 4: Simplify right side
    352,002.40x = 74,884,640,187.84
  5. Step 5: Solve for x
    x = 74,884,640,187.84/352,002.40
  6. Step 6: Final answer
    x = 212,739.00

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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.