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Finding the Fourth Proportional to 89,008.40, 133,480.20 and 44,620.40

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Solution

The fourth proportional to 89,008.40, 133,480.20 and 44,620.40 is: 66,914.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,008.40 : 133,480.20 = 44,620.40 : x
  2. Step 2: Convert to fraction form
    89,008.40/133,480.20 = 44,620.40/x
  3. Step 3: Cross multiply
    89,008.40x = 133,480.20 × 44,620.40
  4. Step 4: Simplify right side
    89,008.40x = 5,955,939,916.08
  5. Step 5: Solve for x
    x = 5,955,939,916.08/89,008.40
  6. Step 6: Final answer
    x = 66,914.36

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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.