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Finding the Fourth Proportional to 105,995.20, 158,701.20 and 100,746.40

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Solution

The fourth proportional to 105,995.20, 158,701.20 and 100,746.40 is: 150,842.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,995.20 : 158,701.20 = 100,746.40 : x
  2. Step 2: Convert to fraction form
    105,995.20/158,701.20 = 100,746.40/x
  3. Step 3: Cross multiply
    105,995.20x = 158,701.20 × 100,746.40
  4. Step 4: Simplify right side
    105,995.20x = 15,988,574,575.68
  5. Step 5: Solve for x
    x = 15,988,574,575.68/105,995.20
  6. Step 6: Final answer
    x = 150,842.44

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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.