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Finding the Fourth Proportional to 74,524.50, 102,845.14 and 40,533.74

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Solution

The fourth proportional to 74,524.50, 102,845.14 and 40,533.74 is: 55,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,524.50 : 102,845.14 = 40,533.74 : x
  2. Step 2: Convert to fraction form
    74,524.50/102,845.14 = 40,533.74/x
  3. Step 3: Cross multiply
    74,524.50x = 102,845.14 × 40,533.74
  4. Step 4: Simplify right side
    74,524.50x = 4,168,698,165.02
  5. Step 5: Solve for x
    x = 4,168,698,165.02/74,524.50
  6. Step 6: Final answer
    x = 55,937.28

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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.