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Finding the Fourth Proportional to 103,619.65, 155,429.48 and 37,061.95

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Solution

The fourth proportional to 103,619.65, 155,429.48 and 37,061.95 is: 55,592.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.65 : 155,429.48 = 37,061.95 : x
  2. Step 2: Convert to fraction form
    103,619.65/155,429.48 = 37,061.95/x
  3. Step 3: Cross multiply
    103,619.65x = 155,429.48 × 37,061.95
  4. Step 4: Simplify right side
    103,619.65x = 5,760,519,616.29
  5. Step 5: Solve for x
    x = 5,760,519,616.29/103,619.65
  6. Step 6: Final answer
    x = 55,592.93

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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.