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Finding the Fourth Proportional to 106,218.70, 159,328.06 and 39,664.04

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Solution

The fourth proportional to 106,218.70, 159,328.06 and 39,664.04 is: 59,496.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,218.70 : 159,328.06 = 39,664.04 : x
  2. Step 2: Convert to fraction form
    106,218.70/159,328.06 = 39,664.04/x
  3. Step 3: Cross multiply
    106,218.70x = 159,328.06 × 39,664.04
  4. Step 4: Simplify right side
    106,218.70x = 6,319,594,544.96
  5. Step 5: Solve for x
    x = 6,319,594,544.96/106,218.70
  6. Step 6: Final answer
    x = 59,496.06

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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.