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Finding the Fourth Proportional to 124,172.64, 186,243.57 and 35,433.90

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Solution

The fourth proportional to 124,172.64, 186,243.57 and 35,433.90 is: 53,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,172.64 : 186,243.57 = 35,433.90 : x
  2. Step 2: Convert to fraction form
    124,172.64/186,243.57 = 35,433.90/x
  3. Step 3: Cross multiply
    124,172.64x = 186,243.57 × 35,433.90
  4. Step 4: Simplify right side
    124,172.64x = 6,599,336,035.02
  5. Step 5: Solve for x
    x = 6,599,336,035.02/124,172.64
  6. Step 6: Final answer
    x = 53,146.46

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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.