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Finding the Fourth Proportional to 117,097.16, 161,593.79 and 63,381.74

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Solution

The fourth proportional to 117,097.16, 161,593.79 and 63,381.74 is: 87,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,097.16 : 161,593.79 = 63,381.74 : x
  2. Step 2: Convert to fraction form
    117,097.16/161,593.79 = 63,381.74/x
  3. Step 3: Cross multiply
    117,097.16x = 161,593.79 × 63,381.74
  4. Step 4: Simplify right side
    117,097.16x = 10,242,094,458.52
  5. Step 5: Solve for x
    x = 10,242,094,458.52/117,097.16
  6. Step 6: Final answer
    x = 87,466.64

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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.