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Finding the Fourth Proportional to 108,663.54, 149,955.58 and 60,916.88

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Solution

The fourth proportional to 108,663.54, 149,955.58 and 60,916.88 is: 84,065.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,663.54 : 149,955.58 = 60,916.88 : x
  2. Step 2: Convert to fraction form
    108,663.54/149,955.58 = 60,916.88/x
  3. Step 3: Cross multiply
    108,663.54x = 149,955.58 × 60,916.88
  4. Step 4: Simplify right side
    108,663.54x = 9,134,826,072.19
  5. Step 5: Solve for x
    x = 9,134,826,072.19/108,663.54
  6. Step 6: Final answer
    x = 84,065.24

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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.