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Finding the Fourth Proportional to 64,009.86, 88,308.96 and 40,094.90

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Solution

The fourth proportional to 64,009.86, 88,308.96 and 40,094.90 is: 55,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,009.86 : 88,308.96 = 40,094.90 : x
  2. Step 2: Convert to fraction form
    64,009.86/88,308.96 = 40,094.90/x
  3. Step 3: Cross multiply
    64,009.86x = 88,308.96 × 40,094.90
  4. Step 4: Simplify right side
    64,009.86x = 3,540,738,920.30
  5. Step 5: Solve for x
    x = 3,540,738,920.30/64,009.86
  6. Step 6: Final answer
    x = 55,315.52

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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.