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Finding the Fourth Proportional to 146,818.80, 220,276.80 and 46,994.40

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Solution

The fourth proportional to 146,818.80, 220,276.80 and 46,994.40 is: 70,507.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,818.80 : 220,276.80 = 46,994.40 : x
  2. Step 2: Convert to fraction form
    146,818.80/220,276.80 = 46,994.40/x
  3. Step 3: Cross multiply
    146,818.80x = 220,276.80 × 46,994.40
  4. Step 4: Simplify right side
    146,818.80x = 10,351,776,049.92
  5. Step 5: Solve for x
    x = 10,351,776,049.92/146,818.80
  6. Step 6: Final answer
    x = 70,507.16

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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.