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Finding the Fourth Proportional to 79,962.86, 110,362.02 and 47,701.64

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Solution

The fourth proportional to 79,962.86, 110,362.02 and 47,701.64 is: 65,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,962.86 : 110,362.02 = 47,701.64 : x
  2. Step 2: Convert to fraction form
    79,962.86/110,362.02 = 47,701.64/x
  3. Step 3: Cross multiply
    79,962.86x = 110,362.02 × 47,701.64
  4. Step 4: Simplify right side
    79,962.86x = 5,264,449,347.71
  5. Step 5: Solve for x
    x = 5,264,449,347.71/79,962.86
  6. Step 6: Final answer
    x = 65,836.18

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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.