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Finding the Fourth Proportional to 74,459.76, 111,708 and 37,037.58

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Solution

The fourth proportional to 74,459.76, 111,708 and 37,037.58 is: 55,565.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,459.76 : 111,708 = 37,037.58 : x
  2. Step 2: Convert to fraction form
    74,459.76/111,708 = 37,037.58/x
  3. Step 3: Cross multiply
    74,459.76x = 111,708 × 37,037.58
  4. Step 4: Simplify right side
    74,459.76x = 4,137,393,986.64
  5. Step 5: Solve for x
    x = 4,137,393,986.64/74,459.76
  6. Step 6: Final answer
    x = 55,565.50

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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.