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Finding the Fourth Proportional to 98,575.80, 147,921.30 and 36,252.60

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Solution

The fourth proportional to 98,575.80, 147,921.30 and 36,252.60 is: 54,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.80 : 147,921.30 = 36,252.60 : x
  2. Step 2: Convert to fraction form
    98,575.80/147,921.30 = 36,252.60/x
  3. Step 3: Cross multiply
    98,575.80x = 147,921.30 × 36,252.60
  4. Step 4: Simplify right side
    98,575.80x = 5,362,531,720.38
  5. Step 5: Solve for x
    x = 5,362,531,720.38/98,575.80
  6. Step 6: Final answer
    x = 54,400.08

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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.