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Finding the Fourth Proportional to 93,701.76, 129,308.42 and 51,260.60

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Solution

The fourth proportional to 93,701.76, 129,308.42 and 51,260.60 is: 70,739.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,701.76 : 129,308.42 = 51,260.60 : x
  2. Step 2: Convert to fraction form
    93,701.76/129,308.42 = 51,260.60/x
  3. Step 3: Cross multiply
    93,701.76x = 129,308.42 × 51,260.60
  4. Step 4: Simplify right side
    93,701.76x = 6,628,427,194.25
  5. Step 5: Solve for x
    x = 6,628,427,194.25/93,701.76
  6. Step 6: Final answer
    x = 70,739.62

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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.