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Finding the Fourth Proportional to 74,523.51, 102,843.76 and 40,532.74

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Solution

The fourth proportional to 74,523.51, 102,843.76 and 40,532.74 is: 55,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,523.51 : 102,843.76 = 40,532.74 : x
  2. Step 2: Convert to fraction form
    74,523.51/102,843.76 = 40,532.74/x
  3. Step 3: Cross multiply
    74,523.51x = 102,843.76 × 40,532.74
  4. Step 4: Simplify right side
    74,523.51x = 4,168,539,384.70
  5. Step 5: Solve for x
    x = 4,168,539,384.70/74,523.51
  6. Step 6: Final answer
    x = 55,935.90

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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.