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Finding the Fourth Proportional to 95,730.80, 143,859.72 and 51,390.32

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Solution

The fourth proportional to 95,730.80, 143,859.72 and 51,390.32 is: 77,226.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,730.80 : 143,859.72 = 51,390.32 : x
  2. Step 2: Convert to fraction form
    95,730.80/143,859.72 = 51,390.32/x
  3. Step 3: Cross multiply
    95,730.80x = 143,859.72 × 51,390.32
  4. Step 4: Simplify right side
    95,730.80x = 7,392,997,045.91
  5. Step 5: Solve for x
    x = 7,392,997,045.91/95,730.80
  6. Step 6: Final answer
    x = 77,226.94

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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.