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Finding the Fourth Proportional to 93,846.65, 129,508.43 and 51,405.89

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Solution

The fourth proportional to 93,846.65, 129,508.43 and 51,405.89 is: 70,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,846.65 : 129,508.43 = 51,405.89 : x
  2. Step 2: Convert to fraction form
    93,846.65/129,508.43 = 51,405.89/x
  3. Step 3: Cross multiply
    93,846.65x = 129,508.43 × 51,405.89
  4. Step 4: Simplify right side
    93,846.65x = 6,657,495,202.08
  5. Step 5: Solve for x
    x = 6,657,495,202.08/93,846.65
  6. Step 6: Final answer
    x = 70,940.15

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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.