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Finding the Fourth Proportional to 148,722.40, 223,256.40 and 89,624.80

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Solution

The fourth proportional to 148,722.40, 223,256.40 and 89,624.80 is: 134,541.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,722.40 : 223,256.40 = 89,624.80 : x
  2. Step 2: Convert to fraction form
    148,722.40/223,256.40 = 89,624.80/x
  3. Step 3: Cross multiply
    148,722.40x = 223,256.40 × 89,624.80
  4. Step 4: Simplify right side
    148,722.40x = 20,009,310,198.72
  5. Step 5: Solve for x
    x = 20,009,310,198.72/148,722.40
  6. Step 6: Final answer
    x = 134,541.33

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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.