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Finding the Fourth Proportional to 110,463.40, 152,540.58 and 80,422.12

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Solution

The fourth proportional to 110,463.40, 152,540.58 and 80,422.12 is: 111,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,463.40 : 152,540.58 = 80,422.12 : x
  2. Step 2: Convert to fraction form
    110,463.40/152,540.58 = 80,422.12/x
  3. Step 3: Cross multiply
    110,463.40x = 152,540.58 × 80,422.12
  4. Step 4: Simplify right side
    110,463.40x = 12,267,636,829.63
  5. Step 5: Solve for x
    x = 12,267,636,829.63/110,463.40
  6. Step 6: Final answer
    x = 111,056.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.