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Finding the Fourth Proportional to 90,241.92, 124,458.30 and 67,633.98

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Solution

The fourth proportional to 90,241.92, 124,458.30 and 67,633.98 is: 93,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,241.92 : 124,458.30 = 67,633.98 : x
  2. Step 2: Convert to fraction form
    90,241.92/124,458.30 = 67,633.98/x
  3. Step 3: Cross multiply
    90,241.92x = 124,458.30 × 67,633.98
  4. Step 4: Simplify right side
    90,241.92x = 8,417,610,173.03
  5. Step 5: Solve for x
    x = 8,417,610,173.03/90,241.92
  6. Step 6: Final answer
    x = 93,278.27

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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.