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Finding the Fourth Proportional to 187,048.51, 280,532.67 and 53,903.95

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Solution

The fourth proportional to 187,048.51, 280,532.67 and 53,903.95 is: 80,844.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,048.51 : 280,532.67 = 53,903.95 : x
  2. Step 2: Convert to fraction form
    187,048.51/280,532.67 = 53,903.95/x
  3. Step 3: Cross multiply
    187,048.51x = 280,532.67 × 53,903.95
  4. Step 4: Simplify right side
    187,048.51x = 15,121,819,017.05
  5. Step 5: Solve for x
    x = 15,121,819,017.05/187,048.51
  6. Step 6: Final answer
    x = 80,844.37

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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.