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Finding the Fourth Proportional to 74,505.76, 111,807.88 and 35,074.15

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Solution

The fourth proportional to 74,505.76, 111,807.88 and 35,074.15 is: 52,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,505.76 : 111,807.88 = 35,074.15 : x
  2. Step 2: Convert to fraction form
    74,505.76/111,807.88 = 35,074.15/x
  3. Step 3: Cross multiply
    74,505.76x = 111,807.88 × 35,074.15
  4. Step 4: Simplify right side
    74,505.76x = 3,921,565,987.10
  5. Step 5: Solve for x
    x = 3,921,565,987.10/74,505.76
  6. Step 6: Final answer
    x = 52,634.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.