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Finding the Fourth Proportional to 114,474.72, 157,974.48 and 64,172.64

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Solution

The fourth proportional to 114,474.72, 157,974.48 and 64,172.64 is: 88,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,474.72 : 157,974.48 = 64,172.64 : x
  2. Step 2: Convert to fraction form
    114,474.72/157,974.48 = 64,172.64/x
  3. Step 3: Cross multiply
    114,474.72x = 157,974.48 × 64,172.64
  4. Step 4: Simplify right side
    114,474.72x = 10,137,639,434.23
  5. Step 5: Solve for x
    x = 10,137,639,434.23/114,474.72
  6. Step 6: Final answer
    x = 88,557.89

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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.