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Finding the Fourth Proportional to 95,379.20, 142,946.40 and 53,259.20

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Solution

The fourth proportional to 95,379.20, 142,946.40 and 53,259.20 is: 79,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,379.20 : 142,946.40 = 53,259.20 : x
  2. Step 2: Convert to fraction form
    95,379.20/142,946.40 = 53,259.20/x
  3. Step 3: Cross multiply
    95,379.20x = 142,946.40 × 53,259.20
  4. Step 4: Simplify right side
    95,379.20x = 7,613,210,906.88
  5. Step 5: Solve for x
    x = 7,613,210,906.88/95,379.20
  6. Step 6: Final answer
    x = 79,820.45

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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.