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Finding the Fourth Proportional to 93,475.21, 128,995.11 and 51,033.74

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Solution

The fourth proportional to 93,475.21, 128,995.11 and 51,033.74 is: 70,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,475.21 : 128,995.11 = 51,033.74 : x
  2. Step 2: Convert to fraction form
    93,475.21/128,995.11 = 51,033.74/x
  3. Step 3: Cross multiply
    93,475.21x = 128,995.11 × 51,033.74
  4. Step 4: Simplify right side
    93,475.21x = 6,583,102,905.01
  5. Step 5: Solve for x
    x = 6,583,102,905.01/93,475.21
  6. Step 6: Final answer
    x = 70,426.19

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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.