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Finding the Fourth Proportional to 224,468.40, 336,740.40 and 66,712.80

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Solution

The fourth proportional to 224,468.40, 336,740.40 and 66,712.80 is: 100,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,468.40 : 336,740.40 = 66,712.80 : x
  2. Step 2: Convert to fraction form
    224,468.40/336,740.40 = 66,712.80/x
  3. Step 3: Cross multiply
    224,468.40x = 336,740.40 × 66,712.80
  4. Step 4: Simplify right side
    224,468.40x = 22,464,894,957.12
  5. Step 5: Solve for x
    x = 22,464,894,957.12/224,468.40
  6. Step 6: Final answer
    x = 100,080.43

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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.