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Finding the Fourth Proportional to 93,337.92, 128,872.62 and 57,539.16

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Solution

The fourth proportional to 93,337.92, 128,872.62 and 57,539.16 is: 79,444.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,337.92 : 128,872.62 = 57,539.16 : x
  2. Step 2: Convert to fraction form
    93,337.92/128,872.62 = 57,539.16/x
  3. Step 3: Cross multiply
    93,337.92x = 128,872.62 × 57,539.16
  4. Step 4: Simplify right side
    93,337.92x = 7,415,222,301.80
  5. Step 5: Solve for x
    x = 7,415,222,301.80/93,337.92
  6. Step 6: Final answer
    x = 79,444.91

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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.