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Finding the Fourth Proportional to 117,716.16, 162,453.02 and 64,001.01

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Solution

The fourth proportional to 117,716.16, 162,453.02 and 64,001.01 is: 88,323.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,716.16 : 162,453.02 = 64,001.01 : x
  2. Step 2: Convert to fraction form
    117,716.16/162,453.02 = 64,001.01/x
  3. Step 3: Cross multiply
    117,716.16x = 162,453.02 × 64,001.01
  4. Step 4: Simplify right side
    117,716.16x = 10,397,157,037.55
  5. Step 5: Solve for x
    x = 10,397,157,037.55/117,716.16
  6. Step 6: Final answer
    x = 88,323.96

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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.