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Finding the Fourth Proportional to 125,800.96, 173,676.96 and 83,416.72

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Solution

The fourth proportional to 125,800.96, 173,676.96 and 83,416.72 is: 115,162.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,800.96 : 173,676.96 = 83,416.72 : x
  2. Step 2: Convert to fraction form
    125,800.96/173,676.96 = 83,416.72/x
  3. Step 3: Cross multiply
    125,800.96x = 173,676.96 × 83,416.72
  4. Step 4: Simplify right side
    125,800.96x = 14,487,562,342.77
  5. Step 5: Solve for x
    x = 14,487,562,342.77/125,800.96
  6. Step 6: Final answer
    x = 115,162.57

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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.