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Finding the Fourth Proportional to 96,078.60, 143,934.30 and 51,690.60

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Solution

The fourth proportional to 96,078.60, 143,934.30 and 51,690.60 is: 77,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,078.60 : 143,934.30 = 51,690.60 : x
  2. Step 2: Convert to fraction form
    96,078.60/143,934.30 = 51,690.60/x
  3. Step 3: Cross multiply
    96,078.60x = 143,934.30 × 51,690.60
  4. Step 4: Simplify right side
    96,078.60x = 7,440,050,327.58
  5. Step 5: Solve for x
    x = 7,440,050,327.58/96,078.60
  6. Step 6: Final answer
    x = 77,437.12

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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.