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Finding the Fourth Proportional to 64,122.80, 88,520.58 and 45,043.11

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Solution

The fourth proportional to 64,122.80, 88,520.58 and 45,043.11 is: 62,181.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,122.80 : 88,520.58 = 45,043.11 : x
  2. Step 2: Convert to fraction form
    64,122.80/88,520.58 = 45,043.11/x
  3. Step 3: Cross multiply
    64,122.80x = 88,520.58 × 45,043.11
  4. Step 4: Simplify right side
    64,122.80x = 3,987,242,222.20
  5. Step 5: Solve for x
    x = 3,987,242,222.20/64,122.80
  6. Step 6: Final answer
    x = 62,181.35

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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.