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Finding the Fourth Proportional to 515,792.16, 773,599.68 and 136,716.48

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Solution

The fourth proportional to 515,792.16, 773,599.68 and 136,716.48 is: 205,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,792.16 : 773,599.68 = 136,716.48 : x
  2. Step 2: Convert to fraction form
    515,792.16/773,599.68 = 136,716.48/x
  3. Step 3: Cross multiply
    515,792.16x = 773,599.68 × 136,716.48
  4. Step 4: Simplify right side
    515,792.16x = 105,763,825,178.73
  5. Step 5: Solve for x
    x = 105,763,825,178.73/515,792.16
  6. Step 6: Final answer
    x = 205,051.25

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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.