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Finding the Fourth Proportional to 93,297.71, 128,745.98 and 53,005.88

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Solution

The fourth proportional to 93,297.71, 128,745.98 and 53,005.88 is: 73,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,297.71 : 128,745.98 = 53,005.88 : x
  2. Step 2: Convert to fraction form
    93,297.71/128,745.98 = 53,005.88/x
  3. Step 3: Cross multiply
    93,297.71x = 128,745.98 × 53,005.88
  4. Step 4: Simplify right side
    93,297.71x = 6,824,293,057.60
  5. Step 5: Solve for x
    x = 6,824,293,057.60/93,297.71
  6. Step 6: Final answer
    x = 73,145.35

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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.