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Finding the Fourth Proportional to 135,999.94, 187,676.20 and 75,569.04

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Solution

The fourth proportional to 135,999.94, 187,676.20 and 75,569.04 is: 104,283.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,999.94 : 187,676.20 = 75,569.04 : x
  2. Step 2: Convert to fraction form
    135,999.94/187,676.20 = 75,569.04/x
  3. Step 3: Cross multiply
    135,999.94x = 187,676.20 × 75,569.04
  4. Step 4: Simplify right side
    135,999.94x = 14,182,510,264.85
  5. Step 5: Solve for x
    x = 14,182,510,264.85/135,999.94
  6. Step 6: Final answer
    x = 104,283.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.