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Finding the Fourth Proportional to 74,646.48, 103,014.60 and 41,115.60

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Solution

The fourth proportional to 74,646.48, 103,014.60 and 41,115.60 is: 56,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,646.48 : 103,014.60 = 41,115.60 : x
  2. Step 2: Convert to fraction form
    74,646.48/103,014.60 = 41,115.60/x
  3. Step 3: Cross multiply
    74,646.48x = 103,014.60 × 41,115.60
  4. Step 4: Simplify right side
    74,646.48x = 4,235,507,087.76
  5. Step 5: Solve for x
    x = 4,235,507,087.76/74,646.48
  6. Step 6: Final answer
    x = 56,740.88

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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.