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Finding the Fourth Proportional to 93,323.31, 128,788.61 and 57,536.97

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Solution

The fourth proportional to 93,323.31, 128,788.61 and 57,536.97 is: 79,402.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,323.31 : 128,788.61 = 57,536.97 : x
  2. Step 2: Convert to fraction form
    93,323.31/128,788.61 = 57,536.97/x
  3. Step 3: Cross multiply
    93,323.31x = 128,788.61 × 57,536.97
  4. Step 4: Simplify right side
    93,323.31x = 7,410,106,389.91
  5. Step 5: Solve for x
    x = 7,410,106,389.91/93,323.31
  6. Step 6: Final answer
    x = 79,402.52

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1.5x scale

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.