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Finding the Fourth Proportional to 225,068.40, 337,640.40 and 67,312.80

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Solution

The fourth proportional to 225,068.40, 337,640.40 and 67,312.80 is: 100,980.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,068.40 : 337,640.40 = 67,312.80 : x
  2. Step 2: Convert to fraction form
    225,068.40/337,640.40 = 67,312.80/x
  3. Step 3: Cross multiply
    225,068.40x = 337,640.40 × 67,312.80
  4. Step 4: Simplify right side
    225,068.40x = 22,727,520,717.12
  5. Step 5: Solve for x
    x = 22,727,520,717.12/225,068.40
  6. Step 6: Final answer
    x = 100,980.51

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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.