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Finding the Fourth Proportional to 93,175.65, 128,581.65 and 50,734.08

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Solution

The fourth proportional to 93,175.65, 128,581.65 and 50,734.08 is: 70,012.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,175.65 : 128,581.65 = 50,734.08 : x
  2. Step 2: Convert to fraction form
    93,175.65/128,581.65 = 50,734.08/x
  3. Step 3: Cross multiply
    93,175.65x = 128,581.65 × 50,734.08
  4. Step 4: Simplify right side
    93,175.65x = 6,523,471,717.63
  5. Step 5: Solve for x
    x = 6,523,471,717.63/93,175.65
  6. Step 6: Final answer
    x = 70,012.62

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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.