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Finding the Fourth Proportional to 92,612.84, 127,808.04 and 56,782.04

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Solution

The fourth proportional to 92,612.84, 127,808.04 and 56,782.04 is: 78,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,612.84 : 127,808.04 = 56,782.04 : x
  2. Step 2: Convert to fraction form
    92,612.84/127,808.04 = 56,782.04/x
  3. Step 3: Cross multiply
    92,612.84x = 127,808.04 × 56,782.04
  4. Step 4: Simplify right side
    92,612.84x = 7,257,201,239.60
  5. Step 5: Solve for x
    x = 7,257,201,239.60/92,612.84
  6. Step 6: Final answer
    x = 78,360.64

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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.