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Finding the Fourth Proportional to 117,101.60, 161,600.60 and 63,386.60

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Solution

The fourth proportional to 117,101.60, 161,600.60 and 63,386.60 is: 87,473.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,101.60 : 161,600.60 = 63,386.60 : x
  2. Step 2: Convert to fraction form
    117,101.60/161,600.60 = 63,386.60/x
  3. Step 3: Cross multiply
    117,101.60x = 161,600.60 × 63,386.60
  4. Step 4: Simplify right side
    117,101.60x = 10,243,311,942.42
  5. Step 5: Solve for x
    x = 10,243,311,942.42/117,101.60
  6. Step 6: Final answer
    x = 87,473.72

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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.