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Finding the Fourth Proportional to 98,914.50, 148,372.02 and 28,795.50

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Solution

The fourth proportional to 98,914.50, 148,372.02 and 28,795.50 is: 43,193.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,914.50 : 148,372.02 = 28,795.50 : x
  2. Step 2: Convert to fraction form
    98,914.50/148,372.02 = 28,795.50/x
  3. Step 3: Cross multiply
    98,914.50x = 148,372.02 × 28,795.50
  4. Step 4: Simplify right side
    98,914.50x = 4,272,446,501.91
  5. Step 5: Solve for x
    x = 4,272,446,501.91/98,914.50
  6. Step 6: Final answer
    x = 43,193.33

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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.