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Finding the Fourth Proportional to 114,708.74, 171,868.56 and 70,242.48

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Solution

The fourth proportional to 114,708.74, 171,868.56 and 70,242.48 is: 105,244.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,708.74 : 171,868.56 = 70,242.48 : x
  2. Step 2: Convert to fraction form
    114,708.74/171,868.56 = 70,242.48/x
  3. Step 3: Cross multiply
    114,708.74x = 171,868.56 × 70,242.48
  4. Step 4: Simplify right side
    114,708.74x = 12,072,473,888.43
  5. Step 5: Solve for x
    x = 12,072,473,888.43/114,708.74
  6. Step 6: Final answer
    x = 105,244.59

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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.