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Finding the Fourth Proportional to 125,640.36, 173,386.98 and 69,053.22

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Solution

The fourth proportional to 125,640.36, 173,386.98 and 69,053.22 is: 95,295.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,640.36 : 173,386.98 = 69,053.22 : x
  2. Step 2: Convert to fraction form
    125,640.36/173,386.98 = 69,053.22/x
  3. Step 3: Cross multiply
    125,640.36x = 173,386.98 × 69,053.22
  4. Step 4: Simplify right side
    125,640.36x = 11,972,929,275.08
  5. Step 5: Solve for x
    x = 11,972,929,275.08/125,640.36
  6. Step 6: Final answer
    x = 95,295.25

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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.