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Finding the Fourth Proportional to 187,056.80, 280,585.20 and 46,815.20

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Solution

The fourth proportional to 187,056.80, 280,585.20 and 46,815.20 is: 70,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,056.80 : 280,585.20 = 46,815.20 : x
  2. Step 2: Convert to fraction form
    187,056.80/280,585.20 = 46,815.20/x
  3. Step 3: Cross multiply
    187,056.80x = 280,585.20 × 46,815.20
  4. Step 4: Simplify right side
    187,056.80x = 13,135,652,255.04
  5. Step 5: Solve for x
    x = 13,135,652,255.04/187,056.80
  6. Step 6: Final answer
    x = 70,222.80

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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.