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Finding the Fourth Proportional to 108,485.75, 149,697.54 and 62,544.88

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Solution

The fourth proportional to 108,485.75, 149,697.54 and 62,544.88 is: 86,304.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,485.75 : 149,697.54 = 62,544.88 : x
  2. Step 2: Convert to fraction form
    108,485.75/149,697.54 = 62,544.88/x
  3. Step 3: Cross multiply
    108,485.75x = 149,697.54 × 62,544.88
  4. Step 4: Simplify right side
    108,485.75x = 9,362,814,862.72
  5. Step 5: Solve for x
    x = 9,362,814,862.72/108,485.75
  6. Step 6: Final answer
    x = 86,304.56

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1.5x scale

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.