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Finding the Fourth Proportional to 93,678.96, 129,289.28 and 53,383.49

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Solution

The fourth proportional to 93,678.96, 129,289.28 and 53,383.49 is: 73,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,678.96 : 129,289.28 = 53,383.49 : x
  2. Step 2: Convert to fraction form
    93,678.96/129,289.28 = 53,383.49/x
  3. Step 3: Cross multiply
    93,678.96x = 129,289.28 × 53,383.49
  4. Step 4: Simplify right side
    93,678.96x = 6,901,912,985.99
  5. Step 5: Solve for x
    x = 6,901,912,985.99/93,678.96
  6. Step 6: Final answer
    x = 73,676.23

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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.