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Finding the Fourth Proportional to 102,904.60, 154,356.90 and 36,346.90

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Solution

The fourth proportional to 102,904.60, 154,356.90 and 36,346.90 is: 54,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,904.60 : 154,356.90 = 36,346.90 : x
  2. Step 2: Convert to fraction form
    102,904.60/154,356.90 = 36,346.90/x
  3. Step 3: Cross multiply
    102,904.60x = 154,356.90 × 36,346.90
  4. Step 4: Simplify right side
    102,904.60x = 5,610,394,808.61
  5. Step 5: Solve for x
    x = 5,610,394,808.61/102,904.60
  6. Step 6: Final answer
    x = 54,520.35

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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.