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Finding the Fourth Proportional to 187,999.20, 281,998.80 and 174,877.20

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Solution

The fourth proportional to 187,999.20, 281,998.80 and 174,877.20 is: 262,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,999.20 : 281,998.80 = 174,877.20 : x
  2. Step 2: Convert to fraction form
    187,999.20/281,998.80 = 174,877.20/x
  3. Step 3: Cross multiply
    187,999.20x = 281,998.80 × 174,877.20
  4. Step 4: Simplify right side
    187,999.20x = 49,315,160,547.36
  5. Step 5: Solve for x
    x = 49,315,160,547.36/187,999.20
  6. Step 6: Final answer
    x = 262,315.80

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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.