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Finding the Fourth Proportional to 93,615.91, 129,189.39 and 51,174.74

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Solution

The fourth proportional to 93,615.91, 129,189.39 and 51,174.74 is: 70,620.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,615.91 : 129,189.39 = 51,174.74 : x
  2. Step 2: Convert to fraction form
    93,615.91/129,189.39 = 51,174.74/x
  3. Step 3: Cross multiply
    93,615.91x = 129,189.39 × 51,174.74
  4. Step 4: Simplify right side
    93,615.91x = 6,611,233,444.01
  5. Step 5: Solve for x
    x = 6,611,233,444.01/93,615.91
  6. Step 6: Final answer
    x = 70,620.83

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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.