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Finding the Fourth Proportional to 136,792.51, 205,178.52 and 48,046.80

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Solution

The fourth proportional to 136,792.51, 205,178.52 and 48,046.80 is: 72,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,792.51 : 205,178.52 = 48,046.80 : x
  2. Step 2: Convert to fraction form
    136,792.51/205,178.52 = 48,046.80/x
  3. Step 3: Cross multiply
    136,792.51x = 205,178.52 × 48,046.80
  4. Step 4: Simplify right side
    136,792.51x = 9,858,171,314.74
  5. Step 5: Solve for x
    x = 9,858,171,314.74/136,792.51
  6. Step 6: Final answer
    x = 72,066.60

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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.