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Finding the Fourth Proportional to 108,014.31, 149,035.88 and 62,666.01

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Solution

The fourth proportional to 108,014.31, 149,035.88 and 62,666.01 is: 86,465.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,014.31 : 149,035.88 = 62,666.01 : x
  2. Step 2: Convert to fraction form
    108,014.31/149,035.88 = 62,666.01/x
  3. Step 3: Cross multiply
    108,014.31x = 149,035.88 × 62,666.01
  4. Step 4: Simplify right side
    108,014.31x = 9,339,484,103.10
  5. Step 5: Solve for x
    x = 9,339,484,103.10/108,014.31
  6. Step 6: Final answer
    x = 86,465.25

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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.