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Finding the Fourth Proportional to 98,982.68, 148,487.36 and 28,861.36

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Solution

The fourth proportional to 98,982.68, 148,487.36 and 28,861.36 is: 43,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,982.68 : 148,487.36 = 28,861.36 : x
  2. Step 2: Convert to fraction form
    98,982.68/148,487.36 = 28,861.36/x
  3. Step 3: Cross multiply
    98,982.68x = 148,487.36 × 28,861.36
  4. Step 4: Simplify right side
    98,982.68x = 4,285,547,152.41
  5. Step 5: Solve for x
    x = 4,285,547,152.41/98,982.68
  6. Step 6: Final answer
    x = 43,295.93

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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.