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Finding the Fourth Proportional to 73,874.40, 103,686.60 and 73,874.40

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Solution

The fourth proportional to 73,874.40, 103,686.60 and 73,874.40 is: 103,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,874.40 : 103,686.60 = 73,874.40 : x
  2. Step 2: Convert to fraction form
    73,874.40/103,686.60 = 73,874.40/x
  3. Step 3: Cross multiply
    73,874.40x = 103,686.60 × 73,874.40
  4. Step 4: Simplify right side
    73,874.40x = 7,659,785,363.04
  5. Step 5: Solve for x
    x = 7,659,785,363.04/73,874.40
  6. Step 6: Final answer
    x = 103,686.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.