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Finding the Fourth Proportional to 93,226.80, 128,602.44 and 55,493.76

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Solution

The fourth proportional to 93,226.80, 128,602.44 and 55,493.76 is: 76,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,226.80 : 128,602.44 = 55,493.76 : x
  2. Step 2: Convert to fraction form
    93,226.80/128,602.44 = 55,493.76/x
  3. Step 3: Cross multiply
    93,226.80x = 128,602.44 × 55,493.76
  4. Step 4: Simplify right side
    93,226.80x = 7,136,632,940.77
  5. Step 5: Solve for x
    x = 7,136,632,940.77/93,226.80
  6. Step 6: Final answer
    x = 76,551.30

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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.