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Finding the Fourth Proportional to 76,083.92, 104,995.20 and 42,549.92

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Solution

The fourth proportional to 76,083.92, 104,995.20 and 42,549.92 is: 58,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,083.92 : 104,995.20 = 42,549.92 : x
  2. Step 2: Convert to fraction form
    76,083.92/104,995.20 = 42,549.92/x
  3. Step 3: Cross multiply
    76,083.92x = 104,995.20 × 42,549.92
  4. Step 4: Simplify right side
    76,083.92x = 4,467,537,360.38
  5. Step 5: Solve for x
    x = 4,467,537,360.38/76,083.92
  6. Step 6: Final answer
    x = 58,718.55

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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.