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Finding the Fourth Proportional to 90,482.40, 135,776.52 and 37,887.48

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Solution

The fourth proportional to 90,482.40, 135,776.52 and 37,887.48 is: 56,853.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,482.40 : 135,776.52 = 37,887.48 : x
  2. Step 2: Convert to fraction form
    90,482.40/135,776.52 = 37,887.48/x
  3. Step 3: Cross multiply
    90,482.40x = 135,776.52 × 37,887.48
  4. Step 4: Simplify right side
    90,482.40x = 5,144,230,185.97
  5. Step 5: Solve for x
    x = 5,144,230,185.97/90,482.40
  6. Step 6: Final answer
    x = 56,853.38

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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.