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Finding the Fourth Proportional to 103,502.65, 155,199.30 and 44,271.40

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Solution

The fourth proportional to 103,502.65, 155,199.30 and 44,271.40 is: 66,383.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,502.65 : 155,199.30 = 44,271.40 : x
  2. Step 2: Convert to fraction form
    103,502.65/155,199.30 = 44,271.40/x
  3. Step 3: Cross multiply
    103,502.65x = 155,199.30 × 44,271.40
  4. Step 4: Simplify right side
    103,502.65x = 6,870,890,290.02
  5. Step 5: Solve for x
    x = 6,870,890,290.02/103,502.65
  6. Step 6: Final answer
    x = 66,383.71

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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.