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Finding the Fourth Proportional to 109,040.80, 163,566.60 and 56,552.80

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Solution

The fourth proportional to 109,040.80, 163,566.60 and 56,552.80 is: 84,832.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,040.80 : 163,566.60 = 56,552.80 : x
  2. Step 2: Convert to fraction form
    109,040.80/163,566.60 = 56,552.80/x
  3. Step 3: Cross multiply
    109,040.80x = 163,566.60 × 56,552.80
  4. Step 4: Simplify right side
    109,040.80x = 9,250,149,216.48
  5. Step 5: Solve for x
    x = 9,250,149,216.48/109,040.80
  6. Step 6: Final answer
    x = 84,832.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.