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Finding the Fourth Proportional to 115,059.60, 172,654.20 and 44,929.80

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Solution

The fourth proportional to 115,059.60, 172,654.20 and 44,929.80 is: 67,420.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,059.60 : 172,654.20 = 44,929.80 : x
  2. Step 2: Convert to fraction form
    115,059.60/172,654.20 = 44,929.80/x
  3. Step 3: Cross multiply
    115,059.60x = 172,654.20 × 44,929.80
  4. Step 4: Simplify right side
    115,059.60x = 7,757,318,675.16
  5. Step 5: Solve for x
    x = 7,757,318,675.16/115,059.60
  6. Step 6: Final answer
    x = 67,420.00

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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.