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Finding the Fourth Proportional to 93,432.56, 128,936.80 and 59,898.56

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Solution

The fourth proportional to 93,432.56, 128,936.80 and 59,898.56 is: 82,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.56 : 128,936.80 = 59,898.56 : x
  2. Step 2: Convert to fraction form
    93,432.56/128,936.80 = 59,898.56/x
  3. Step 3: Cross multiply
    93,432.56x = 128,936.80 × 59,898.56
  4. Step 4: Simplify right side
    93,432.56x = 7,723,128,651.01
  5. Step 5: Solve for x
    x = 7,723,128,651.01/93,432.56
  6. Step 6: Final answer
    x = 82,659.93

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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.