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Finding the Fourth Proportional to 74,494.84, 102,802.90 and 40,960.84

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Solution

The fourth proportional to 74,494.84, 102,802.90 and 40,960.84 is: 56,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,494.84 : 102,802.90 = 40,960.84 : x
  2. Step 2: Convert to fraction form
    74,494.84/102,802.90 = 40,960.84/x
  3. Step 3: Cross multiply
    74,494.84x = 102,802.90 × 40,960.84
  4. Step 4: Simplify right side
    74,494.84x = 4,210,893,138.44
  5. Step 5: Solve for x
    x = 4,210,893,138.44/74,494.84
  6. Step 6: Final answer
    x = 56,525.97

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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.