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Finding the Fourth Proportional to 108,447.61, 149,629.32 and 62,496.01

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Solution

The fourth proportional to 108,447.61, 149,629.32 and 62,496.01 is: 86,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,447.61 : 149,629.32 = 62,496.01 : x
  2. Step 2: Convert to fraction form
    108,447.61/149,629.32 = 62,496.01/x
  3. Step 3: Cross multiply
    108,447.61x = 149,629.32 × 62,496.01
  4. Step 4: Simplify right side
    108,447.61x = 9,351,235,479.01
  5. Step 5: Solve for x
    x = 9,351,235,479.01/108,447.61
  6. Step 6: Final answer
    x = 86,228.14

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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.