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Finding the Fourth Proportional to 73,674.84, 101,671.28 and 40,140.84

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Solution

The fourth proportional to 73,674.84, 101,671.28 and 40,140.84 is: 55,394.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,674.84 : 101,671.28 = 40,140.84 : x
  2. Step 2: Convert to fraction form
    73,674.84/101,671.28 = 40,140.84/x
  3. Step 3: Cross multiply
    73,674.84x = 101,671.28 × 40,140.84
  4. Step 4: Simplify right side
    73,674.84x = 4,081,170,583.08
  5. Step 5: Solve for x
    x = 4,081,170,583.08/73,674.84
  6. Step 6: Final answer
    x = 55,394.36

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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.