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Finding the Fourth Proportional to 90,433.66, 135,622.80 and 62,533

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Solution

The fourth proportional to 90,433.66, 135,622.80 and 62,533 is: 93,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,433.66 : 135,622.80 = 62,533 : x
  2. Step 2: Convert to fraction form
    90,433.66/135,622.80 = 62,533/x
  3. Step 3: Cross multiply
    90,433.66x = 135,622.80 × 62,533
  4. Step 4: Simplify right side
    90,433.66x = 8,480,900,552.40
  5. Step 5: Solve for x
    x = 8,480,900,552.40/90,433.66
  6. Step 6: Final answer
    x = 93,780.35

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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.