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Finding the Fourth Proportional to 303,316.11, 454,934.52 and 90,079.67

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Solution

The fourth proportional to 303,316.11, 454,934.52 and 90,079.67 is: 135,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,316.11 : 454,934.52 = 90,079.67 : x
  2. Step 2: Convert to fraction form
    303,316.11/454,934.52 = 90,079.67/x
  3. Step 3: Cross multiply
    303,316.11x = 454,934.52 × 90,079.67
  4. Step 4: Simplify right side
    303,316.11x = 40,980,349,158.54
  5. Step 5: Solve for x
    x = 40,980,349,158.54/303,316.11
  6. Step 6: Final answer
    x = 135,107.72

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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.