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Finding the Fourth Proportional to 108,462.64, 149,676.91 and 60,715.93

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Solution

The fourth proportional to 108,462.64, 149,676.91 and 60,715.93 is: 83,787.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,462.64 : 149,676.91 = 60,715.93 : x
  2. Step 2: Convert to fraction form
    108,462.64/149,676.91 = 60,715.93/x
  3. Step 3: Cross multiply
    108,462.64x = 149,676.91 × 60,715.93
  4. Step 4: Simplify right side
    108,462.64x = 9,087,772,790.18
  5. Step 5: Solve for x
    x = 9,087,772,790.18/108,462.64
  6. Step 6: Final answer
    x = 83,787.13

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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.