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Finding the Fourth Proportional to 87,262.64, 120,409.32 and 49,014.86

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Solution

The fourth proportional to 87,262.64, 120,409.32 and 49,014.86 is: 67,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,262.64 : 120,409.32 = 49,014.86 : x
  2. Step 2: Convert to fraction form
    87,262.64/120,409.32 = 49,014.86/x
  3. Step 3: Cross multiply
    87,262.64x = 120,409.32 × 49,014.86
  4. Step 4: Simplify right side
    87,262.64x = 5,901,845,962.50
  5. Step 5: Solve for x
    x = 5,901,845,962.50/87,262.64
  6. Step 6: Final answer
    x = 67,633.14

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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.