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Finding the Fourth Proportional to 97,453.71, 134,491.53 and 68,782.55

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Solution

The fourth proportional to 97,453.71, 134,491.53 and 68,782.55 is: 94,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,453.71 : 134,491.53 = 68,782.55 : x
  2. Step 2: Convert to fraction form
    97,453.71/134,491.53 = 68,782.55/x
  3. Step 3: Cross multiply
    97,453.71x = 134,491.53 × 68,782.55
  4. Step 4: Simplify right side
    97,453.71x = 9,250,669,714.34
  5. Step 5: Solve for x
    x = 9,250,669,714.34/97,453.71
  6. Step 6: Final answer
    x = 94,923.73

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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.