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Finding the Fourth Proportional to 93,362.50, 128,947.73 and 67,982.34

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Solution

The fourth proportional to 93,362.50, 128,947.73 and 67,982.34 is: 93,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,362.50 : 128,947.73 = 67,982.34 : x
  2. Step 2: Convert to fraction form
    93,362.50/128,947.73 = 67,982.34/x
  3. Step 3: Cross multiply
    93,362.50x = 128,947.73 × 67,982.34
  4. Step 4: Simplify right side
    93,362.50x = 8,766,168,423.09
  5. Step 5: Solve for x
    x = 8,766,168,423.09/93,362.50
  6. Step 6: Final answer
    x = 93,893.89

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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.