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Finding the Fourth Proportional to 108,492.48, 149,733.36 and 66,048.48

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Solution

The fourth proportional to 108,492.48, 149,733.36 and 66,048.48 is: 91,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,492.48 : 149,733.36 = 66,048.48 : x
  2. Step 2: Convert to fraction form
    108,492.48/149,733.36 = 66,048.48/x
  3. Step 3: Cross multiply
    108,492.48x = 149,733.36 × 66,048.48
  4. Step 4: Simplify right side
    108,492.48x = 9,889,660,833.29
  5. Step 5: Solve for x
    x = 9,889,660,833.29/108,492.48
  6. Step 6: Final answer
    x = 91,155.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.