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Finding the Fourth Proportional to 93,581.79, 129,127.94 and 53,296.30

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Solution

The fourth proportional to 93,581.79, 129,127.94 and 53,296.30 is: 73,540.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,581.79 : 129,127.94 = 53,296.30 : x
  2. Step 2: Convert to fraction form
    93,581.79/129,127.94 = 53,296.30/x
  3. Step 3: Cross multiply
    93,581.79x = 129,127.94 × 53,296.30
  4. Step 4: Simplify right side
    93,581.79x = 6,882,041,162.14
  5. Step 5: Solve for x
    x = 6,882,041,162.14/93,581.79
  6. Step 6: Final answer
    x = 73,540.39

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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.