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Finding the Fourth Proportional to 98,696.80, 148,045.20 and 33,032.80

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Solution

The fourth proportional to 98,696.80, 148,045.20 and 33,032.80 is: 49,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,696.80 : 148,045.20 = 33,032.80 : x
  2. Step 2: Convert to fraction form
    98,696.80/148,045.20 = 33,032.80/x
  3. Step 3: Cross multiply
    98,696.80x = 148,045.20 × 33,032.80
  4. Step 4: Simplify right side
    98,696.80x = 4,890,347,482.56
  5. Step 5: Solve for x
    x = 4,890,347,482.56/98,696.80
  6. Step 6: Final answer
    x = 49,549.20

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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.