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Finding the Fourth Proportional to 228,889.46, 315,864.14 and 126,915.10

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Solution

The fourth proportional to 228,889.46, 315,864.14 and 126,915.10 is: 175,141.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,889.46 : 315,864.14 = 126,915.10 : x
  2. Step 2: Convert to fraction form
    228,889.46/315,864.14 = 126,915.10/x
  3. Step 3: Cross multiply
    228,889.46x = 315,864.14 × 126,915.10
  4. Step 4: Simplify right side
    228,889.46x = 40,087,928,914.51
  5. Step 5: Solve for x
    x = 40,087,928,914.51/228,889.46
  6. Step 6: Final answer
    x = 175,141.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.