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Finding the Fourth Proportional to 124,433.40, 186,659.88 and 61,287.48

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Solution

The fourth proportional to 124,433.40, 186,659.88 and 61,287.48 is: 91,936.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,433.40 : 186,659.88 = 61,287.48 : x
  2. Step 2: Convert to fraction form
    124,433.40/186,659.88 = 61,287.48/x
  3. Step 3: Cross multiply
    124,433.40x = 186,659.88 × 61,287.48
  4. Step 4: Simplify right side
    124,433.40x = 11,439,913,662.30
  5. Step 5: Solve for x
    x = 11,439,913,662.30/124,433.40
  6. Step 6: Final answer
    x = 91,936.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.