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Finding the Fourth Proportional to 131,763.30, 197,664.12 and 42,994.95

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Solution

The fourth proportional to 131,763.30, 197,664.12 and 42,994.95 is: 64,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,763.30 : 197,664.12 = 42,994.95 : x
  2. Step 2: Convert to fraction form
    131,763.30/197,664.12 = 42,994.95/x
  3. Step 3: Cross multiply
    131,763.30x = 197,664.12 × 42,994.95
  4. Step 4: Simplify right side
    131,763.30x = 8,498,558,956.19
  5. Step 5: Solve for x
    x = 8,498,558,956.19/131,763.30
  6. Step 6: Final answer
    x = 64,498.68

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1.5x scale

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.