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Finding the Fourth Proportional to 125,856, 173,681.25 and 69,267.36

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Solution

The fourth proportional to 125,856, 173,681.25 and 69,267.36 is: 95,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,856 : 173,681.25 = 69,267.36 : x
  2. Step 2: Convert to fraction form
    125,856/173,681.25 = 69,267.36/x
  3. Step 3: Cross multiply
    125,856x = 173,681.25 × 69,267.36
  4. Step 4: Simplify right side
    125,856x = 12,030,441,669
  5. Step 5: Solve for x
    x = 12,030,441,669/125,856
  6. Step 6: Final answer
    x = 95,588.94

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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.