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Finding the Fourth Proportional to 332,442.80, 498,518.40 and 132,696.80

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Solution

The fourth proportional to 332,442.80, 498,518.40 and 132,696.80 is: 198,987.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,442.80 : 498,518.40 = 132,696.80 : x
  2. Step 2: Convert to fraction form
    332,442.80/498,518.40 = 132,696.80/x
  3. Step 3: Cross multiply
    332,442.80x = 498,518.40 × 132,696.80
  4. Step 4: Simplify right side
    332,442.80x = 66,151,796,421.12
  5. Step 5: Solve for x
    x = 66,151,796,421.12/332,442.80
  6. Step 6: Final answer
    x = 198,987.00

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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.