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Finding the Fourth Proportional to 95,969.80, 143,954.70 and 88,971.40

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Solution

The fourth proportional to 95,969.80, 143,954.70 and 88,971.40 is: 133,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,969.80 : 143,954.70 = 88,971.40 : x
  2. Step 2: Convert to fraction form
    95,969.80/143,954.70 = 88,971.40/x
  3. Step 3: Cross multiply
    95,969.80x = 143,954.70 × 88,971.40
  4. Step 4: Simplify right side
    95,969.80x = 12,807,851,195.58
  5. Step 5: Solve for x
    x = 12,807,851,195.58/95,969.80
  6. Step 6: Final answer
    x = 133,457.10

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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.