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Finding the Fourth Proportional to 476,904.96, 715,356 and 121,919.04

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Solution

The fourth proportional to 476,904.96, 715,356 and 121,919.04 is: 182,878.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,904.96 : 715,356 = 121,919.04 : x
  2. Step 2: Convert to fraction form
    476,904.96/715,356 = 121,919.04/x
  3. Step 3: Cross multiply
    476,904.96x = 715,356 × 121,919.04
  4. Step 4: Simplify right side
    476,904.96x = 87,215,516,778.24
  5. Step 5: Solve for x
    x = 87,215,516,778.24/476,904.96
  6. Step 6: Final answer
    x = 182,878.19

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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.