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Finding the Fourth Proportional to 90,320.63, 135,480.94 and 24,656.63

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Solution

The fourth proportional to 90,320.63, 135,480.94 and 24,656.63 is: 36,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,320.63 : 135,480.94 = 24,656.63 : x
  2. Step 2: Convert to fraction form
    90,320.63/135,480.94 = 24,656.63/x
  3. Step 3: Cross multiply
    90,320.63x = 135,480.94 × 24,656.63
  4. Step 4: Simplify right side
    90,320.63x = 3,340,502,670.59
  5. Step 5: Solve for x
    x = 3,340,502,670.59/90,320.63
  6. Step 6: Final answer
    x = 36,984.94

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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.