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Finding the Fourth Proportional to 93,751.60, 129,375.48 and 51,309.28

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Solution

The fourth proportional to 93,751.60, 129,375.48 and 51,309.28 is: 70,805.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,751.60 : 129,375.48 = 51,309.28 : x
  2. Step 2: Convert to fraction form
    93,751.60/129,375.48 = 51,309.28/x
  3. Step 3: Cross multiply
    93,751.60x = 129,375.48 × 51,309.28
  4. Step 4: Simplify right side
    93,751.60x = 6,638,162,728.45
  5. Step 5: Solve for x
    x = 6,638,162,728.45/93,751.60
  6. Step 6: Final answer
    x = 70,805.86

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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.