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Finding the Fourth Proportional to 117,117.52, 161,621.04 and 63,401.14

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Solution

The fourth proportional to 117,117.52, 161,621.04 and 63,401.14 is: 87,492.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.52 : 161,621.04 = 63,401.14 : x
  2. Step 2: Convert to fraction form
    117,117.52/161,621.04 = 63,401.14/x
  3. Step 3: Cross multiply
    117,117.52x = 161,621.04 × 63,401.14
  4. Step 4: Simplify right side
    117,117.52x = 10,246,958,183.99
  5. Step 5: Solve for x
    x = 10,246,958,183.99/117,117.52
  6. Step 6: Final answer
    x = 87,492.96

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1.5x scale

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.