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Finding the Fourth Proportional to 117,117.09, 161,622.10 and 63,402.10

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Solution

The fourth proportional to 117,117.09, 161,622.10 and 63,402.10 is: 87,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.09 : 161,622.10 = 63,402.10 : x
  2. Step 2: Convert to fraction form
    117,117.09/161,622.10 = 63,402.10/x
  3. Step 3: Cross multiply
    117,117.09x = 161,622.10 × 63,402.10
  4. Step 4: Simplify right side
    117,117.09x = 10,247,180,546.41
  5. Step 5: Solve for x
    x = 10,247,180,546.41/117,117.09
  6. Step 6: Final answer
    x = 87,495.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.