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Finding the Fourth Proportional to 187,216.80, 280,387.80 and 183,458.40

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Solution

The fourth proportional to 187,216.80, 280,387.80 and 183,458.40 is: 274,758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,216.80 : 280,387.80 = 183,458.40 : x
  2. Step 2: Convert to fraction form
    187,216.80/280,387.80 = 183,458.40/x
  3. Step 3: Cross multiply
    187,216.80x = 280,387.80 × 183,458.40
  4. Step 4: Simplify right side
    187,216.80x = 51,439,497,167.52
  5. Step 5: Solve for x
    x = 51,439,497,167.52/187,216.80
  6. Step 6: Final answer
    x = 274,758.98

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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.