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Finding the Fourth Proportional to 93,698.76, 129,304.68 and 51,258

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Solution

The fourth proportional to 93,698.76, 129,304.68 and 51,258 is: 70,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,698.76 : 129,304.68 = 51,258 : x
  2. Step 2: Convert to fraction form
    93,698.76/129,304.68 = 51,258/x
  3. Step 3: Cross multiply
    93,698.76x = 129,304.68 × 51,258
  4. Step 4: Simplify right side
    93,698.76x = 6,627,899,287.44
  5. Step 5: Solve for x
    x = 6,627,899,287.44/93,698.76
  6. Step 6: Final answer
    x = 70,736.25

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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.