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Finding the Fourth Proportional to 103,501.65, 155,197.80 and 44,270.40

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Solution

The fourth proportional to 103,501.65, 155,197.80 and 44,270.40 is: 66,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,501.65 : 155,197.80 = 44,270.40 : x
  2. Step 2: Convert to fraction form
    103,501.65/155,197.80 = 44,270.40/x
  3. Step 3: Cross multiply
    103,501.65x = 155,197.80 × 44,270.40
  4. Step 4: Simplify right side
    103,501.65x = 6,870,668,685.12
  5. Step 5: Solve for x
    x = 6,870,668,685.12/103,501.65
  6. Step 6: Final answer
    x = 66,382.21

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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.