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Finding the Fourth Proportional to 106,246.80, 159,370.20 and 66,848.40

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Solution

The fourth proportional to 106,246.80, 159,370.20 and 66,848.40 is: 100,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,246.80 : 159,370.20 = 66,848.40 : x
  2. Step 2: Convert to fraction form
    106,246.80/159,370.20 = 66,848.40/x
  3. Step 3: Cross multiply
    106,246.80x = 159,370.20 × 66,848.40
  4. Step 4: Simplify right side
    106,246.80x = 10,653,642,877.68
  5. Step 5: Solve for x
    x = 10,653,642,877.68/106,246.80
  6. Step 6: Final answer
    x = 100,272.60

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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.