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Finding the Fourth Proportional to 476,863.79, 715,293.86 and 121,877.24

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Solution

The fourth proportional to 476,863.79, 715,293.86 and 121,877.24 is: 182,815.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,863.79 : 715,293.86 = 121,877.24 : x
  2. Step 2: Convert to fraction form
    476,863.79/715,293.86 = 121,877.24/x
  3. Step 3: Cross multiply
    476,863.79x = 715,293.86 × 121,877.24
  4. Step 4: Simplify right side
    476,863.79x = 87,178,037,259.89
  5. Step 5: Solve for x
    x = 87,178,037,259.89/476,863.79
  6. Step 6: Final answer
    x = 182,815.39

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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.