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Finding the Fourth Proportional to 103,624.65, 155,436.98 and 103,624.65

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Solution

The fourth proportional to 103,624.65, 155,436.98 and 103,624.65 is: 155,436.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,624.65 : 155,436.98 = 103,624.65 : x
  2. Step 2: Convert to fraction form
    103,624.65/155,436.98 = 103,624.65/x
  3. Step 3: Cross multiply
    103,624.65x = 155,436.98 × 103,624.65
  4. Step 4: Simplify right side
    103,624.65x = 16,107,102,131.43
  5. Step 5: Solve for x
    x = 16,107,102,131.43/103,624.65
  6. Step 6: Final answer
    x = 155,436.98

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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.