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Finding the Fourth Proportional to 93,769.34, 129,369.65 and 53,454.03

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Solution

The fourth proportional to 93,769.34, 129,369.65 and 53,454.03 is: 73,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,769.34 : 129,369.65 = 53,454.03 : x
  2. Step 2: Convert to fraction form
    93,769.34/129,369.65 = 53,454.03/x
  3. Step 3: Cross multiply
    93,769.34x = 129,369.65 × 53,454.03
  4. Step 4: Simplify right side
    93,769.34x = 6,915,328,884.92
  5. Step 5: Solve for x
    x = 6,915,328,884.92/93,769.34
  6. Step 6: Final answer
    x = 73,748.30

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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.