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Finding the Fourth Proportional to 98,859.60, 148,260.60 and 35,672.40

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Solution

The fourth proportional to 98,859.60, 148,260.60 and 35,672.40 is: 53,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,859.60 : 148,260.60 = 35,672.40 : x
  2. Step 2: Convert to fraction form
    98,859.60/148,260.60 = 35,672.40/x
  3. Step 3: Cross multiply
    98,859.60x = 148,260.60 × 35,672.40
  4. Step 4: Simplify right side
    98,859.60x = 5,288,811,427.44
  5. Step 5: Solve for x
    x = 5,288,811,427.44/98,859.60
  6. Step 6: Final answer
    x = 53,498.21

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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.