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Finding the Fourth Proportional to 98,851.51, 148,299.05 and 28,736.29

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Solution

The fourth proportional to 98,851.51, 148,299.05 and 28,736.29 is: 43,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,851.51 : 148,299.05 = 28,736.29 : x
  2. Step 2: Convert to fraction form
    98,851.51/148,299.05 = 28,736.29/x
  3. Step 3: Cross multiply
    98,851.51x = 148,299.05 × 28,736.29
  4. Step 4: Simplify right side
    98,851.51x = 4,261,564,507.52
  5. Step 5: Solve for x
    x = 4,261,564,507.52/98,851.51
  6. Step 6: Final answer
    x = 43,110.77

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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.