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Finding the Fourth Proportional to 74,995.61, 112,493.42 and 51,769.67

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Solution

The fourth proportional to 74,995.61, 112,493.42 and 51,769.67 is: 77,654.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,995.61 : 112,493.42 = 51,769.67 : x
  2. Step 2: Convert to fraction form
    74,995.61/112,493.42 = 51,769.67/x
  3. Step 3: Cross multiply
    74,995.61x = 112,493.42 × 51,769.67
  4. Step 4: Simplify right side
    74,995.61x = 5,823,746,409.26
  5. Step 5: Solve for x
    x = 5,823,746,409.26/74,995.61
  6. Step 6: Final answer
    x = 77,654.50

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.