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Finding the Fourth Proportional to 106,545.96, 159,736.32 and 69,026.76

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Solution

The fourth proportional to 106,545.96, 159,736.32 and 69,026.76 is: 103,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,545.96 : 159,736.32 = 69,026.76 : x
  2. Step 2: Convert to fraction form
    106,545.96/159,736.32 = 69,026.76/x
  3. Step 3: Cross multiply
    106,545.96x = 159,736.32 × 69,026.76
  4. Step 4: Simplify right side
    106,545.96x = 11,026,080,623.92
  5. Step 5: Solve for x
    x = 11,026,080,623.92/106,545.96
  6. Step 6: Final answer
    x = 103,486.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.