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Finding the Fourth Proportional to 117,101.13, 161,621.45 and 66,800.13

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Solution

The fourth proportional to 117,101.13, 161,621.45 and 66,800.13 is: 92,196.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,101.13 : 161,621.45 = 66,800.13 : x
  2. Step 2: Convert to fraction form
    117,101.13/161,621.45 = 66,800.13/x
  3. Step 3: Cross multiply
    117,101.13x = 161,621.45 × 66,800.13
  4. Step 4: Simplify right side
    117,101.13x = 10,796,333,870.79
  5. Step 5: Solve for x
    x = 10,796,333,870.79/117,101.13
  6. Step 6: Final answer
    x = 92,196.67

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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.