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Finding the Fourth Proportional to 95,411.70, 142,995.15 and 53,291.70

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Solution

The fourth proportional to 95,411.70, 142,995.15 and 53,291.70 is: 79,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,411.70 : 142,995.15 = 53,291.70 : x
  2. Step 2: Convert to fraction form
    95,411.70/142,995.15 = 53,291.70/x
  3. Step 3: Cross multiply
    95,411.70x = 142,995.15 × 53,291.70
  4. Step 4: Simplify right side
    95,411.70x = 7,620,454,635.26
  5. Step 5: Solve for x
    x = 7,620,454,635.26/95,411.70
  6. Step 6: Final answer
    x = 79,869.18

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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.