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Finding the Fourth Proportional to 125,826, 173,639.88 and 69,236.16

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Solution

The fourth proportional to 125,826, 173,639.88 and 69,236.16 is: 95,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,826 : 173,639.88 = 69,236.16 : x
  2. Step 2: Convert to fraction form
    125,826/173,639.88 = 69,236.16/x
  3. Step 3: Cross multiply
    125,826x = 173,639.88 × 69,236.16
  4. Step 4: Simplify right side
    125,826x = 12,022,158,514.06
  5. Step 5: Solve for x
    x = 12,022,158,514.06/125,826
  6. Step 6: Final answer
    x = 95,545.90

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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.