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Finding the Fourth Proportional to 170,867.40, 256,301.10 and 70,994.40

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Solution

The fourth proportional to 170,867.40, 256,301.10 and 70,994.40 is: 106,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,867.40 : 256,301.10 = 70,994.40 : x
  2. Step 2: Convert to fraction form
    170,867.40/256,301.10 = 70,994.40/x
  3. Step 3: Cross multiply
    170,867.40x = 256,301.10 × 70,994.40
  4. Step 4: Simplify right side
    170,867.40x = 18,195,942,813.84
  5. Step 5: Solve for x
    x = 18,195,942,813.84/170,867.40
  6. Step 6: Final answer
    x = 106,491.60

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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.