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Finding the Fourth Proportional to 73,674.48, 101,671.92 and 40,140.48

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Solution

The fourth proportional to 73,674.48, 101,671.92 and 40,140.48 is: 55,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,674.48 : 101,671.92 = 40,140.48 : x
  2. Step 2: Convert to fraction form
    73,674.48/101,671.92 = 40,140.48/x
  3. Step 3: Cross multiply
    73,674.48x = 101,671.92 × 40,140.48
  4. Step 4: Simplify right side
    73,674.48x = 4,081,159,671.32
  5. Step 5: Solve for x
    x = 4,081,159,671.32/73,674.48
  6. Step 6: Final answer
    x = 55,394.48

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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.