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Finding the Fourth Proportional to 92,707.43, 127,889.16 and 58,658.54

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Solution

The fourth proportional to 92,707.43, 127,889.16 and 58,658.54 is: 80,918.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,707.43 : 127,889.16 = 58,658.54 : x
  2. Step 2: Convert to fraction form
    92,707.43/127,889.16 = 58,658.54/x
  3. Step 3: Cross multiply
    92,707.43x = 127,889.16 × 58,658.54
  4. Step 4: Simplify right side
    92,707.43x = 7,501,791,407.43
  5. Step 5: Solve for x
    x = 7,501,791,407.43/92,707.43
  6. Step 6: Final answer
    x = 80,918.99

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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.