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Finding the Fourth Proportional to 93,860.66, 129,531.01 and 51,419.19

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Solution

The fourth proportional to 93,860.66, 129,531.01 and 51,419.19 is: 70,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,860.66 : 129,531.01 = 51,419.19 : x
  2. Step 2: Convert to fraction form
    93,860.66/129,531.01 = 51,419.19/x
  3. Step 3: Cross multiply
    93,860.66x = 129,531.01 × 51,419.19
  4. Step 4: Simplify right side
    93,860.66x = 6,660,379,614.08
  5. Step 5: Solve for x
    x = 6,660,379,614.08/93,860.66
  6. Step 6: Final answer
    x = 70,960.29

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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.