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Finding the Fourth Proportional to 163,611.70, 245,417.55 and 100,626.10

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Solution

The fourth proportional to 163,611.70, 245,417.55 and 100,626.10 is: 150,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,611.70 : 245,417.55 = 100,626.10 : x
  2. Step 2: Convert to fraction form
    163,611.70/245,417.55 = 100,626.10/x
  3. Step 3: Cross multiply
    163,611.70x = 245,417.55 × 100,626.10
  4. Step 4: Simplify right side
    163,611.70x = 24,695,410,928.06
  5. Step 5: Solve for x
    x = 24,695,410,928.06/163,611.70
  6. Step 6: Final answer
    x = 150,939.15

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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.