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Finding the Fourth Proportional to 187,893.74, 281,814.69 and 103,809.26

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Solution

The fourth proportional to 187,893.74, 281,814.69 and 103,809.26 is: 155,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,893.74 : 281,814.69 = 103,809.26 : x
  2. Step 2: Convert to fraction form
    187,893.74/281,814.69 = 103,809.26/x
  3. Step 3: Cross multiply
    187,893.74x = 281,814.69 × 103,809.26
  4. Step 4: Simplify right side
    187,893.74x = 29,254,974,426.03
  5. Step 5: Solve for x
    x = 29,254,974,426.03/187,893.74
  6. Step 6: Final answer
    x = 155,699.57

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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.