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Finding the Fourth Proportional to 187,029.40, 280,544.10 and 53,897.80

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Solution

The fourth proportional to 187,029.40, 280,544.10 and 53,897.80 is: 80,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,029.40 : 280,544.10 = 53,897.80 : x
  2. Step 2: Convert to fraction form
    187,029.40/280,544.10 = 53,897.80/x
  3. Step 3: Cross multiply
    187,029.40x = 280,544.10 × 53,897.80
  4. Step 4: Simplify right side
    187,029.40x = 15,120,709,792.98
  5. Step 5: Solve for x
    x = 15,120,709,792.98/187,029.40
  6. Step 6: Final answer
    x = 80,846.70

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1.5x scale

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.