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Finding the Fourth Proportional to 71,850.89, 99,154.19 and 41,653.76

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Solution

The fourth proportional to 71,850.89, 99,154.19 and 41,653.76 is: 57,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,850.89 : 99,154.19 = 41,653.76 : x
  2. Step 2: Convert to fraction form
    71,850.89/99,154.19 = 41,653.76/x
  3. Step 3: Cross multiply
    71,850.89x = 99,154.19 × 41,653.76
  4. Step 4: Simplify right side
    71,850.89x = 4,130,144,441.62
  5. Step 5: Solve for x
    x = 4,130,144,441.62/71,850.89
  6. Step 6: Final answer
    x = 57,482.16

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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.