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Finding the Fourth Proportional to 125,636.32, 173,320.32 and 77,194.27

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Solution

The fourth proportional to 125,636.32, 173,320.32 and 77,194.27 is: 106,492.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,636.32 : 173,320.32 = 77,194.27 : x
  2. Step 2: Convert to fraction form
    125,636.32/173,320.32 = 77,194.27/x
  3. Step 3: Cross multiply
    125,636.32x = 173,320.32 × 77,194.27
  4. Step 4: Simplify right side
    125,636.32x = 13,379,335,578.57
  5. Step 5: Solve for x
    x = 13,379,335,578.57/125,636.32
  6. Step 6: Final answer
    x = 106,492.58

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1.5x scale

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.