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Finding the Fourth Proportional to 119,626.40, 179,218.20 and 69,730.40

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Solution

The fourth proportional to 119,626.40, 179,218.20 and 69,730.40 is: 104,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,626.40 : 179,218.20 = 69,730.40 : x
  2. Step 2: Convert to fraction form
    119,626.40/179,218.20 = 69,730.40/x
  3. Step 3: Cross multiply
    119,626.40x = 179,218.20 × 69,730.40
  4. Step 4: Simplify right side
    119,626.40x = 12,496,956,773.28
  5. Step 5: Solve for x
    x = 12,496,956,773.28/119,626.40
  6. Step 6: Final answer
    x = 104,466.55

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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.