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Finding the Fourth Proportional to 224,478.36, 336,480.84 and 74,678.64

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Solution

The fourth proportional to 224,478.36, 336,480.84 and 74,678.64 is: 111,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,478.36 : 336,480.84 = 74,678.64 : x
  2. Step 2: Convert to fraction form
    224,478.36/336,480.84 = 74,678.64/x
  3. Step 3: Cross multiply
    224,478.36x = 336,480.84 × 74,678.64
  4. Step 4: Simplify right side
    224,478.36x = 25,127,931,517.26
  5. Step 5: Solve for x
    x = 25,127,931,517.26/224,478.36
  6. Step 6: Final answer
    x = 111,939.22

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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.