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Finding the Fourth Proportional to 93,199.56, 128,619.95 and 52,912.59

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Solution

The fourth proportional to 93,199.56, 128,619.95 and 52,912.59 is: 73,021.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,199.56 : 128,619.95 = 52,912.59 : x
  2. Step 2: Convert to fraction form
    93,199.56/128,619.95 = 52,912.59/x
  3. Step 3: Cross multiply
    93,199.56x = 128,619.95 × 52,912.59
  4. Step 4: Simplify right side
    93,199.56x = 6,805,614,415.61
  5. Step 5: Solve for x
    x = 6,805,614,415.61/93,199.56
  6. Step 6: Final answer
    x = 73,021.96

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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.