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Finding the Fourth Proportional to 93,284.70, 128,736.35 and 53,005.29

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Solution

The fourth proportional to 93,284.70, 128,736.35 and 53,005.29 is: 73,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,284.70 : 128,736.35 = 53,005.29 : x
  2. Step 2: Convert to fraction form
    93,284.70/128,736.35 = 53,005.29/x
  3. Step 3: Cross multiply
    93,284.70x = 128,736.35 × 53,005.29
  4. Step 4: Simplify right side
    93,284.70x = 6,823,707,565.29
  5. Step 5: Solve for x
    x = 6,823,707,565.29/93,284.70
  6. Step 6: Final answer
    x = 73,149.27

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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.