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Finding the Fourth Proportional to 63,423.40, 87,256.02 and 61,673.80

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Solution

The fourth proportional to 63,423.40, 87,256.02 and 61,673.80 is: 84,848.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,423.40 : 87,256.02 = 61,673.80 : x
  2. Step 2: Convert to fraction form
    63,423.40/87,256.02 = 61,673.80/x
  3. Step 3: Cross multiply
    63,423.40x = 87,256.02 × 61,673.80
  4. Step 4: Simplify right side
    63,423.40x = 5,381,410,326.28
  5. Step 5: Solve for x
    x = 5,381,410,326.28/63,423.40
  6. Step 6: Final answer
    x = 84,848.97

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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.