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Finding the Fourth Proportional to 369,012.60, 553,486.50 and 102,755.88

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Solution

The fourth proportional to 369,012.60, 553,486.50 and 102,755.88 is: 154,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,012.60 : 553,486.50 = 102,755.88 : x
  2. Step 2: Convert to fraction form
    369,012.60/553,486.50 = 102,755.88/x
  3. Step 3: Cross multiply
    369,012.60x = 553,486.50 × 102,755.88
  4. Step 4: Simplify right side
    369,012.60x = 56,873,992,375.62
  5. Step 5: Solve for x
    x = 56,873,992,375.62/369,012.60
  6. Step 6: Final answer
    x = 154,124.80

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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.