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Finding the Fourth Proportional to 95,861.80, 143,792.70 and 53,871.40

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Solution

The fourth proportional to 95,861.80, 143,792.70 and 53,871.40 is: 80,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,861.80 : 143,792.70 = 53,871.40 : x
  2. Step 2: Convert to fraction form
    95,861.80/143,792.70 = 53,871.40/x
  3. Step 3: Cross multiply
    95,861.80x = 143,792.70 × 53,871.40
  4. Step 4: Simplify right side
    95,861.80x = 7,746,314,058.78
  5. Step 5: Solve for x
    x = 7,746,314,058.78/95,861.80
  6. Step 6: Final answer
    x = 80,807.10

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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.