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Finding the Fourth Proportional to 93,474.72, 128,997.36 and 51,032.88

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Solution

The fourth proportional to 93,474.72, 128,997.36 and 51,032.88 is: 70,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,474.72 : 128,997.36 = 51,032.88 : x
  2. Step 2: Convert to fraction form
    93,474.72/128,997.36 = 51,032.88/x
  3. Step 3: Cross multiply
    93,474.72x = 128,997.36 × 51,032.88
  4. Step 4: Simplify right side
    93,474.72x = 6,583,106,793.20
  5. Step 5: Solve for x
    x = 6,583,106,793.20/93,474.72
  6. Step 6: Final answer
    x = 70,426.60

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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.