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Finding the Fourth Proportional to 106,555.76, 159,792.08 and 39,959.60

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Solution

The fourth proportional to 106,555.76, 159,792.08 and 39,959.60 is: 59,923.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,555.76 : 159,792.08 = 39,959.60 : x
  2. Step 2: Convert to fraction form
    106,555.76/159,792.08 = 39,959.60/x
  3. Step 3: Cross multiply
    106,555.76x = 159,792.08 × 39,959.60
  4. Step 4: Simplify right side
    106,555.76x = 6,385,227,599.97
  5. Step 5: Solve for x
    x = 6,385,227,599.97/106,555.76
  6. Step 6: Final answer
    x = 59,923.81

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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.