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Finding the Fourth Proportional to 92,581.64, 127,775.38 and 56,765.32

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Solution

The fourth proportional to 92,581.64, 127,775.38 and 56,765.32 is: 78,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,581.64 : 127,775.38 = 56,765.32 : x
  2. Step 2: Convert to fraction form
    92,581.64/127,775.38 = 56,765.32/x
  3. Step 3: Cross multiply
    92,581.64x = 127,775.38 × 56,765.32
  4. Step 4: Simplify right side
    92,581.64x = 7,253,210,333.82
  5. Step 5: Solve for x
    x = 7,253,210,333.82/92,581.64
  6. Step 6: Final answer
    x = 78,343.94

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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.