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Finding the Fourth Proportional to 262,025.10, 392,992.05 and 84,532.11

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Solution

The fourth proportional to 262,025.10, 392,992.05 and 84,532.11 is: 126,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,025.10 : 392,992.05 = 84,532.11 : x
  2. Step 2: Convert to fraction form
    262,025.10/392,992.05 = 84,532.11/x
  3. Step 3: Cross multiply
    262,025.10x = 392,992.05 × 84,532.11
  4. Step 4: Simplify right side
    262,025.10x = 33,220,447,199.73
  5. Step 5: Solve for x
    x = 33,220,447,199.73/262,025.10
  6. Step 6: Final answer
    x = 126,783.45

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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.