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Finding the Fourth Proportional to 65,818.80, 98,627.40 and 49,100.40

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Solution

The fourth proportional to 65,818.80, 98,627.40 and 49,100.40 is: 73,575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,818.80 : 98,627.40 = 49,100.40 : x
  2. Step 2: Convert to fraction form
    65,818.80/98,627.40 = 49,100.40/x
  3. Step 3: Cross multiply
    65,818.80x = 98,627.40 × 49,100.40
  4. Step 4: Simplify right side
    65,818.80x = 4,842,644,790.96
  5. Step 5: Solve for x
    x = 4,842,644,790.96/65,818.80
  6. Step 6: Final answer
    x = 73,575.40

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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.