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Finding the Fourth Proportional to 93,978.27, 129,689.96 and 51,537.71

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Solution

The fourth proportional to 93,978.27, 129,689.96 and 51,537.71 is: 71,122.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,978.27 : 129,689.96 = 51,537.71 : x
  2. Step 2: Convert to fraction form
    93,978.27/129,689.96 = 51,537.71/x
  3. Step 3: Cross multiply
    93,978.27x = 129,689.96 × 51,537.71
  4. Step 4: Simplify right side
    93,978.27x = 6,683,922,642.25
  5. Step 5: Solve for x
    x = 6,683,922,642.25/93,978.27
  6. Step 6: Final answer
    x = 71,122.00

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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.