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Finding the Fourth Proportional to 92,579.64, 127,772.62 and 56,763.32

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Solution

The fourth proportional to 92,579.64, 127,772.62 and 56,763.32 is: 78,341.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,579.64 : 127,772.62 = 56,763.32 : x
  2. Step 2: Convert to fraction form
    92,579.64/127,772.62 = 56,763.32/x
  3. Step 3: Cross multiply
    92,579.64x = 127,772.62 × 56,763.32
  4. Step 4: Simplify right side
    92,579.64x = 7,252,798,116.30
  5. Step 5: Solve for x
    x = 7,252,798,116.30/92,579.64
  6. Step 6: Final answer
    x = 78,341.18

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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.