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Finding the Fourth Proportional to 93,603, 129,172.08 and 51,161.52

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Solution

The fourth proportional to 93,603, 129,172.08 and 51,161.52 is: 70,602.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,603 : 129,172.08 = 51,161.52 : x
  2. Step 2: Convert to fraction form
    93,603/129,172.08 = 51,161.52/x
  3. Step 3: Cross multiply
    93,603x = 129,172.08 × 51,161.52
  4. Step 4: Simplify right side
    93,603x = 6,608,639,954.36
  5. Step 5: Solve for x
    x = 6,608,639,954.36/93,603
  6. Step 6: Final answer
    x = 70,602.86

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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.