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Finding the Fourth Proportional to 74,793.66, 103,005.28 and 73,160.70

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Solution

The fourth proportional to 74,793.66, 103,005.28 and 73,160.70 is: 100,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.66 : 103,005.28 = 73,160.70 : x
  2. Step 2: Convert to fraction form
    74,793.66/103,005.28 = 73,160.70/x
  3. Step 3: Cross multiply
    74,793.66x = 103,005.28 × 73,160.70
  4. Step 4: Simplify right side
    74,793.66x = 7,535,938,388.50
  5. Step 5: Solve for x
    x = 7,535,938,388.50/74,793.66
  6. Step 6: Final answer
    x = 100,756.38

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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.