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Finding the Fourth Proportional to 117,788.92, 162,495.08 and 70,015.12

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Solution

The fourth proportional to 117,788.92, 162,495.08 and 70,015.12 is: 96,588.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,788.92 : 162,495.08 = 70,015.12 : x
  2. Step 2: Convert to fraction form
    117,788.92/162,495.08 = 70,015.12/x
  3. Step 3: Cross multiply
    117,788.92x = 162,495.08 × 70,015.12
  4. Step 4: Simplify right side
    117,788.92x = 11,377,112,525.61
  5. Step 5: Solve for x
    x = 11,377,112,525.61/117,788.92
  6. Step 6: Final answer
    x = 96,588.99

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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.