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Finding the Fourth Proportional to 63,641.76, 87,828.12 and 43,540.80

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Solution

The fourth proportional to 63,641.76, 87,828.12 and 43,540.80 is: 60,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,641.76 : 87,828.12 = 43,540.80 : x
  2. Step 2: Convert to fraction form
    63,641.76/87,828.12 = 43,540.80/x
  3. Step 3: Cross multiply
    63,641.76x = 87,828.12 × 43,540.80
  4. Step 4: Simplify right side
    63,641.76x = 3,824,106,607.30
  5. Step 5: Solve for x
    x = 3,824,106,607.30/63,641.76
  6. Step 6: Final answer
    x = 60,088.01

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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.