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Finding the Fourth Proportional to 451,653.48, 677,480.46 and 114,719.40

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Solution

The fourth proportional to 451,653.48, 677,480.46 and 114,719.40 is: 172,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,653.48 : 677,480.46 = 114,719.40 : x
  2. Step 2: Convert to fraction form
    451,653.48/677,480.46 = 114,719.40/x
  3. Step 3: Cross multiply
    451,653.48x = 677,480.46 × 114,719.40
  4. Step 4: Simplify right side
    451,653.48x = 77,720,151,882.92
  5. Step 5: Solve for x
    x = 77,720,151,882.92/451,653.48
  6. Step 6: Final answer
    x = 172,079.16

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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.