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Finding the Fourth Proportional to 92,718.96, 127,905.04 and 58,670.08

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Solution

The fourth proportional to 92,718.96, 127,905.04 and 58,670.08 is: 80,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,718.96 : 127,905.04 = 58,670.08 : x
  2. Step 2: Convert to fraction form
    92,718.96/127,905.04 = 58,670.08/x
  3. Step 3: Cross multiply
    92,718.96x = 127,905.04 × 58,670.08
  4. Step 4: Simplify right side
    92,718.96x = 7,504,198,929.20
  5. Step 5: Solve for x
    x = 7,504,198,929.20/92,718.96
  6. Step 6: Final answer
    x = 80,934.89

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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.