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Finding the Fourth Proportional to 125,953.82, 173,815.95 and 69,365.18

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Solution

The fourth proportional to 125,953.82, 173,815.95 and 69,365.18 is: 95,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,953.82 : 173,815.95 = 69,365.18 : x
  2. Step 2: Convert to fraction form
    125,953.82/173,815.95 = 69,365.18/x
  3. Step 3: Cross multiply
    125,953.82x = 173,815.95 × 69,365.18
  4. Step 4: Simplify right side
    125,953.82x = 12,056,774,658.62
  5. Step 5: Solve for x
    x = 12,056,774,658.62/125,953.82
  6. Step 6: Final answer
    x = 95,723.77

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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.