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Finding the Fourth Proportional to 72,810.66, 109,216.08 and 41,624.04

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Solution

The fourth proportional to 72,810.66, 109,216.08 and 41,624.04 is: 62,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,810.66 : 109,216.08 = 41,624.04 : x
  2. Step 2: Convert to fraction form
    72,810.66/109,216.08 = 41,624.04/x
  3. Step 3: Cross multiply
    72,810.66x = 109,216.08 × 41,624.04
  4. Step 4: Simplify right side
    72,810.66x = 4,546,014,482.56
  5. Step 5: Solve for x
    x = 4,546,014,482.56/72,810.66
  6. Step 6: Final answer
    x = 62,436.11

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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.