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Finding the Fourth Proportional to 90,488.63, 135,732.95 and 35,084.63

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Solution

The fourth proportional to 90,488.63, 135,732.95 and 35,084.63 is: 52,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,488.63 : 135,732.95 = 35,084.63 : x
  2. Step 2: Convert to fraction form
    90,488.63/135,732.95 = 35,084.63/x
  3. Step 3: Cross multiply
    90,488.63x = 135,732.95 × 35,084.63
  4. Step 4: Simplify right side
    90,488.63x = 4,762,139,475.47
  5. Step 5: Solve for x
    x = 4,762,139,475.47/90,488.63
  6. Step 6: Final answer
    x = 52,626.94

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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.