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Finding the Fourth Proportional to 93,901.25, 129,583.86 and 51,458.87

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Solution

The fourth proportional to 93,901.25, 129,583.86 and 51,458.87 is: 71,013.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,901.25 : 129,583.86 = 51,458.87 : x
  2. Step 2: Convert to fraction form
    93,901.25/129,583.86 = 51,458.87/x
  3. Step 3: Cross multiply
    93,901.25x = 129,583.86 × 51,458.87
  4. Step 4: Simplify right side
    93,901.25x = 6,668,239,005.84
  5. Step 5: Solve for x
    x = 6,668,239,005.84/93,901.25
  6. Step 6: Final answer
    x = 71,013.31

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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.