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Finding the Fourth Proportional to 93,798.56, 129,442.38 and 51,356.72

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Solution

The fourth proportional to 93,798.56, 129,442.38 and 51,356.72 is: 70,872.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,798.56 : 129,442.38 = 51,356.72 : x
  2. Step 2: Convert to fraction form
    93,798.56/129,442.38 = 51,356.72/x
  3. Step 3: Cross multiply
    93,798.56x = 129,442.38 × 51,356.72
  4. Step 4: Simplify right side
    93,798.56x = 6,647,736,065.79
  5. Step 5: Solve for x
    x = 6,647,736,065.79/93,798.56
  6. Step 6: Final answer
    x = 70,872.47

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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.