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Finding the Fourth Proportional to 206,858.77, 310,130.29 and 106,955.19

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Solution

The fourth proportional to 206,858.77, 310,130.29 and 106,955.19 is: 160,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,858.77 : 310,130.29 = 106,955.19 : x
  2. Step 2: Convert to fraction form
    206,858.77/310,130.29 = 106,955.19/x
  3. Step 3: Cross multiply
    206,858.77x = 310,130.29 × 106,955.19
  4. Step 4: Simplify right side
    206,858.77x = 33,170,044,091.71
  5. Step 5: Solve for x
    x = 33,170,044,091.71/206,858.77
  6. Step 6: Final answer
    x = 160,351.16

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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.