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Finding the Fourth Proportional to 92,339.73, 138,460.37 and 47,921.76

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Solution

The fourth proportional to 92,339.73, 138,460.37 and 47,921.76 is: 71,857.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,339.73 : 138,460.37 = 47,921.76 : x
  2. Step 2: Convert to fraction form
    92,339.73/138,460.37 = 47,921.76/x
  3. Step 3: Cross multiply
    92,339.73x = 138,460.37 × 47,921.76
  4. Step 4: Simplify right side
    92,339.73x = 6,635,264,381.04
  5. Step 5: Solve for x
    x = 6,635,264,381.04/92,339.73
  6. Step 6: Final answer
    x = 71,857.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.