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Finding the Fourth Proportional to 125,804.39, 173,606.51 and 69,215.77

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Solution

The fourth proportional to 125,804.39, 173,606.51 and 69,215.77 is: 95,515.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,804.39 : 173,606.51 = 69,215.77 : x
  2. Step 2: Convert to fraction form
    125,804.39/173,606.51 = 69,215.77/x
  3. Step 3: Cross multiply
    125,804.39x = 173,606.51 × 69,215.77
  4. Step 4: Simplify right side
    125,804.39x = 12,016,307,920.58
  5. Step 5: Solve for x
    x = 12,016,307,920.58/125,804.39
  6. Step 6: Final answer
    x = 95,515.81

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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.