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Finding the Fourth Proportional to 119,792.98, 165,314.47 and 68,815.58

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Solution

The fourth proportional to 119,792.98, 165,314.47 and 68,815.58 is: 94,965.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,792.98 : 165,314.47 = 68,815.58 : x
  2. Step 2: Convert to fraction form
    119,792.98/165,314.47 = 68,815.58/x
  3. Step 3: Cross multiply
    119,792.98x = 165,314.47 × 68,815.58
  4. Step 4: Simplify right side
    119,792.98x = 11,376,210,265.86
  5. Step 5: Solve for x
    x = 11,376,210,265.86/119,792.98
  6. Step 6: Final answer
    x = 94,965.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.