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Finding the Fourth Proportional to 92,745.30, 127,990.83 and 52,457.13

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Solution

The fourth proportional to 92,745.30, 127,990.83 and 52,457.13 is: 72,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,745.30 : 127,990.83 = 52,457.13 : x
  2. Step 2: Convert to fraction form
    92,745.30/127,990.83 = 52,457.13/x
  3. Step 3: Cross multiply
    92,745.30x = 127,990.83 × 52,457.13
  4. Step 4: Simplify right side
    92,745.30x = 6,714,031,608.12
  5. Step 5: Solve for x
    x = 6,714,031,608.12/92,745.30
  6. Step 6: Final answer
    x = 72,392.15

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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.