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Finding the Fourth Proportional to 98,607.70, 147,911.55 and 36,270.10

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Solution

The fourth proportional to 98,607.70, 147,911.55 and 36,270.10 is: 54,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,607.70 : 147,911.55 = 36,270.10 : x
  2. Step 2: Convert to fraction form
    98,607.70/147,911.55 = 36,270.10/x
  3. Step 3: Cross multiply
    98,607.70x = 147,911.55 × 36,270.10
  4. Step 4: Simplify right side
    98,607.70x = 5,364,766,709.66
  5. Step 5: Solve for x
    x = 5,364,766,709.66/98,607.70
  6. Step 6: Final answer
    x = 54,405.15

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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.