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Finding the Fourth Proportional to 93,301.99, 128,752.10 and 53,010.43

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Solution

The fourth proportional to 93,301.99, 128,752.10 and 53,010.43 is: 73,151.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,301.99 : 128,752.10 = 53,010.43 : x
  2. Step 2: Convert to fraction form
    93,301.99/128,752.10 = 53,010.43/x
  3. Step 3: Cross multiply
    93,301.99x = 128,752.10 × 53,010.43
  4. Step 4: Simplify right side
    93,301.99x = 6,825,203,919.35
  5. Step 5: Solve for x
    x = 6,825,203,919.35/93,301.99
  6. Step 6: Final answer
    x = 73,151.75

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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.