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Finding the Fourth Proportional to 168,032.30, 252,048.45 and 155,201.90

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Solution

The fourth proportional to 168,032.30, 252,048.45 and 155,201.90 is: 232,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,032.30 : 252,048.45 = 155,201.90 : x
  2. Step 2: Convert to fraction form
    168,032.30/252,048.45 = 155,201.90/x
  3. Step 3: Cross multiply
    168,032.30x = 252,048.45 × 155,201.90
  4. Step 4: Simplify right side
    168,032.30x = 39,118,398,332.06
  5. Step 5: Solve for x
    x = 39,118,398,332.06/168,032.30
  6. Step 6: Final answer
    x = 232,802.85

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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.