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Finding the Fourth Proportional to 108,136, 149,227.68 and 59,737.69

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Solution

The fourth proportional to 108,136, 149,227.68 and 59,737.69 is: 82,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,136 : 149,227.68 = 59,737.69 : x
  2. Step 2: Convert to fraction form
    108,136/149,227.68 = 59,737.69/x
  3. Step 3: Cross multiply
    108,136x = 149,227.68 × 59,737.69
  4. Step 4: Simplify right side
    108,136x = 8,914,516,887.26
  5. Step 5: Solve for x
    x = 8,914,516,887.26/108,136
  6. Step 6: Final answer
    x = 82,438.01

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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.