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Finding the Fourth Proportional to 113,328.30, 169,992.45 and 101,081.10

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Solution

The fourth proportional to 113,328.30, 169,992.45 and 101,081.10 is: 151,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,328.30 : 169,992.45 = 101,081.10 : x
  2. Step 2: Convert to fraction form
    113,328.30/169,992.45 = 101,081.10/x
  3. Step 3: Cross multiply
    113,328.30x = 169,992.45 × 101,081.10
  4. Step 4: Simplify right side
    113,328.30x = 17,183,023,837.70
  5. Step 5: Solve for x
    x = 17,183,023,837.70/113,328.30
  6. Step 6: Final answer
    x = 151,621.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.