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Finding the Fourth Proportional to 72,446.20, 108,669.30 and 62,423.80

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Solution

The fourth proportional to 72,446.20, 108,669.30 and 62,423.80 is: 93,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,446.20 : 108,669.30 = 62,423.80 : x
  2. Step 2: Convert to fraction form
    72,446.20/108,669.30 = 62,423.80/x
  3. Step 3: Cross multiply
    72,446.20x = 108,669.30 × 62,423.80
  4. Step 4: Simplify right side
    72,446.20x = 6,783,550,649.34
  5. Step 5: Solve for x
    x = 6,783,550,649.34/72,446.20
  6. Step 6: Final answer
    x = 93,635.70

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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.