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Finding the Fourth Proportional to 95,862.40, 143,858.40 and 53,742.40

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Solution

The fourth proportional to 95,862.40, 143,858.40 and 53,742.40 is: 80,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,862.40 : 143,858.40 = 53,742.40 : x
  2. Step 2: Convert to fraction form
    95,862.40/143,858.40 = 53,742.40/x
  3. Step 3: Cross multiply
    95,862.40x = 143,858.40 × 53,742.40
  4. Step 4: Simplify right side
    95,862.40x = 7,731,295,676.16
  5. Step 5: Solve for x
    x = 7,731,295,676.16/95,862.40
  6. Step 6: Final answer
    x = 80,649.93

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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.