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Finding the Fourth Proportional to 95,407.56, 143,111.34 and 39,245.40

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Solution

The fourth proportional to 95,407.56, 143,111.34 and 39,245.40 is: 58,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,407.56 : 143,111.34 = 39,245.40 : x
  2. Step 2: Convert to fraction form
    95,407.56/143,111.34 = 39,245.40/x
  3. Step 3: Cross multiply
    95,407.56x = 143,111.34 × 39,245.40
  4. Step 4: Simplify right side
    95,407.56x = 5,616,461,782.84
  5. Step 5: Solve for x
    x = 5,616,461,782.84/95,407.56
  6. Step 6: Final answer
    x = 58,868.10

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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.